Power Connection and Fusing

The meter can accept either 11-30V DC or 95-265V AC. You MUST connect the correct power voltage or you will damage the meter.

See the rating label on the top surface of the meter for its Power Voltage.

The colour of the power connector identifies the voltage range your meter can accept.

AC Power - Red Connector



DC Power - Black Connector

Specifications: Power Supply
AC Version	95-265 V AC 47-63 Hz 8W max. Fuse with 2A 'T' rated (anti-surge) fuse. Power Connector = Red Switch-mode transformer galvanic isolation
DC Version	11-30V DC 8W max. Fuse with 5A 'T' rated (anti-surge) fuse. Power Connector = Black Switch-mode transformer galvanic isolation NB: Current Limiting If your DC power has current limiting less than 2A, per meter being supplied, the voltage may fail to rise above 10V when you switch on, so the meter may not start. This is caused by the initial surge current, when the internal capacitors charge up. Ensure your power supply can provide at least 2A peak current, per meter.

Brightness adjustment

You can set the display brightness to one of 8 levels, any time you want, while the display is in its normal locked operating mode.

1. Press button 2 for at least 3 seconds.

The display will say briL in the colour of your choice.

2. Press the △ or ▽ button to set the brightness you want.

3. Press OK to save.

Ordering Codes

Create an ordering code from the features you want ...

Send

Meter Family	INT5 Accepts Load Cell, 4-20mA, 0-10V, Thermocouples, PT100, Potentiometer, Pulse counter, Rate/rpm, Elapsed timer, mV DC shunt, Resistance Optional functions are available to add precision Power Frequency measurement and a Real-Time Clock for Time, date and day counting applications.
Analog Output	None 0-10V / 4-20mA
Alarm/Control Output	None 4 x SPCO mechanical 4 x Solid State AC 4 x Solid State DC
Data Port 1	None RS232 RS485
Data Port 2	None RS232 RS485
Power Voltage	AC 95-265V DC 11-30V
Protection	Standard IP65 IP67/NEMA4X front cover Wallbox + IP67 cover
Real time clock	None Real Time Clock
Power Frequency Monitor	None Power Frequency Monitor
Your ordering code is INT5-0-0-0-0-AC-0-0-0 The factory MRP code is: ????-???? The Component list is: Case XXXX-XXXX Main board XXXX-XXXX Input board XXXX-XXXX Display board XXXX-XXXX Upper board XXXX-XXXX Analogue output board XXXX-XXXX Comms1 output board XXXX-XXXX Comms2 output board XXXX-XXXX SPC4 XXXX-XXXX Wallbox (incl. SPC4) XXXX-XXXX RTC kit XXXX-XXXX Power Frequ. kit XXXX-XXXX

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Form Index: 5

Locking & Editing settings

There are 2 Unlocked 'edit' modes.

Ed.AL: Edit Alarm settings:
In normal running mode, press 'OK' button for 5 seconds until display shows 'Ed.AL'.

You can now edit alarm modes and setpoints.

Ed.CF: Edit Config settings (Full Access):
In normal running mode, press 'OK' button for 10 seconds until display shows 'Ed.CF'. Do not release the button when you see Ed.AL

You can now edit all paremeters and modes in the meter.

How to Lock your meter:
When you switch your meter on, it will be locked automatically.

After you have unlocked it, it will lock itself automatically if you make no changes within 5 minutes.

To lock it quickly, switch the meter off for 5 seconds and then switch on again.

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Look at the LED near the unlock symbol on the meter.

All Instrument configuration settings unlocked
Indicator lit 3.8 seconds, off 0.2 second

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Look at the LED near the unlock symbol on the meter.

Alarm settings only unlocked
Indicator  lit 0.2 seconds, off 3.8 seconds

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Look at the LED near the unlock symbol on the meter.

Fully Locked
Indicator   is unlit at all times

Elapsed Timer mode

The Elapsed timer mode is ideal for a wide range of applications, such as process timing, takt timing, countdown to completion etc.



Simple Start, Stop and Reset contact inputs from your process allow you to set up many common timing tasks.



You can choose from several timing modes.

Timing formats:
SSSS Seconds
SSS.T Seconds, to 1/10 second
MM:SS Minutes and Seconds
HH:MM Hours and Minutes


Timing direction:
UP Counts up from 0
dn Counts down from preset


Preset:
PrSt You would normally use 'PrSt' in down counting. The 'PrSt' (preset) value sets an amount of time to count down from.

For example, adjust 'PrSt' to 8:00 in format HH:MM
Reset the timer.
The timer will show 08:00 and will count down to 00:00 over a period of 8 hours, for example to show time remaining in a shift.

You can use the 'Stop' control to freeze the down-count during lunch breaks, 'Start' when work re-commences.

Negative Timing: (down counting only)
NEg.n Stops counting and flashes when timer reaches 0.
NEg.Y Continues counting down below 0. Illuminates the x icon when the count is negative.

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3 pushbuttons: Individual Start, Stop and Reset commands

Contact 1 = Start timer (brief contact)
Contact 2 - Stop timer (brief contact)
Contact 3 = Reset timer (brief contact)



Up Timer sequence.


Down Timer sequence.

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2 pushbuttons: Start and combined [Stop and Reset] commands

Contact 1 = Start timer (brief contact)
Contact 2 = Stop and reset timer (brief contact)
Contact 3 = Connect to contact 2



Up Timer sequence.


Down Timer sequence.

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2 pushbuttons: Stop and combined [Start and Reset] commands

Contact 1 = Start and Reset timer (brief contact)
Contact 2 = Stop timer (brief contact)
Contact 3 = Connect to contact 1



Up Timer sequence.


Down Timer sequence.

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The meter has non-volatile memory, so will store elapsed time and previous contact state when it is switched off.

It will continue running when power returns. This is useful for machine maintenance run-time applications, or in production line timing applications.

Timing stops during power loss.

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Functional limitations:

In this mode, the following functional limitations apply:

Serial data output - only available in mode C1 on timers.
Analogue output - Unavailable on timers.

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Signal Types
NPN Transistors	Switching 5V DC at 1mA Must saturate to lower than 1V Vce
Normally Open Contacts	Switching 5V DC at 1mA We recommend you use wiping contacts, to mechanically clear any oxidation or tarnishing of the contact surfaces.
Normally Closed Contacts	Switching 5V DC at 1mA We recommend you use wiping contacts, to mechanically clear any oxidation or tarnishing of the contact surfaces.
De-bounce	Each input port has its own configurable de-bounce time which you can adjust to suit your application. Range 0 to 9999 milli-seconds.

This video shows how to set up your timer display.

Totaliser / Counter mode

The Totaliser mode is ideal for most production counting applications.

It is easy to scale and has non-volatile memory to store your count if power is lost.



How to Reset the total:
Connect terminal 10 briefly to terminal 11 to reset your counter.







Specify a whole number of input pulses.



Specify how much the display should change when those pulses arrive. (floating point)



Now you can set a contact debounce filter time in milliseconds.

This gives more reliable counting if you use a switch, relay, pushbutton or other mechanical contact closure device as your input signal.

Set the debounce period according to your maximum input pulse rate:

Max. pulse input frequency	dbnc
1 pulse per sec. max.	500
10 pulses per sec. max.	50
100 pulses per sec. max.	5
More than 100 pulses per sec.	0

Press OK to save.

This video demonstrates how to adjust your totaliser for 10 input pulses to display 1.5 counts, with debounce time of 500 mS. The configuration lockout switch must be off.

Clock mode

The model number will include "RTC" if the clock option module is installed.

The Clock mode will display accurate time of day or date in several international standard formats.

It automatically adjusts for summer / winter time, or it can display GMT / UTC / Zulu time.




You can also use it as a Day counter for Days Since Last Accident or to count down days to an event.

It is easy to set up and includes automatic daylight saving time.





If you do not see CL in the list, the real-time clock option board is not fitted in your meter. It is a plug-in option module.

You can set the timer formats to :
HH:MM
HH:MM:SS
DD.MM
MM.DD
DD.MM.YY
MM.DD.YY
YY.MM.DD

You can set Automatic Summer/Winter time correction for Europe and USA, or set for GMT / UTC / Zulu.

If you want to show elapsed or count-down Days, for example to show Days since last Accident, or days until an event, select mode dAY.C


Mode H.M : Local Europe/London time:



Mode H.M.S. Local Europe/London time:



Mode d.M.Y. Local Europe/London date EU format:



Mode M.d.Y. Date, USA format:



Mode Y.M.d. Date, China, Korea format:



Mode dAY.C. Days elapsed.
To count up 1 each day, select UP.

Here showing days elapsed since December 31 last year. To define a number of days already passed, to include days already elapsed, use Load

You can instead count down days to an event. Select mode dn. To set the amount of days remaining now, use Pr.St

This video shows how to select type CL We then select one of the clock modes. In this example, we will view all the modes and will select H.M.S.

This video shows how to adjust your clock to a precision time reference. In this example, we use the Clock page of the meter's online operating manual, which has a precision time reference. Unlock the meter and press Buttons 1, 2 and 3 together for 3 seconds. You can set Year , Month, Date, HH and MM. Set MM to one minute ahead of actual time, then press Button 4. The green Alarm LEDs will flash. As soon as the time reference reaches this time, press button 4 to synchronise the clock.

This video shows how to fit the clock board option into your meter. 1. Remove the fastening screw on lower surface. There may be one on the upper surface also, if the meter has output option modules fitted. 2. Remove the front panel 3. Slide the circuit board forward, out of the case. 4. Remove the spare screw from the pillar on the clock board and plug the board onto the row of pins each side of the processor. 5. Turn the main board over and place the screw from the pillar into the hole shown and tighten the screw. 6. Slide the board into the case and re-fit the screw on the lower surface. 7. Re-fit the front panel to the case. 8. To enable the clock, apply power and select type CL. 9. Set the mode you require and check that it operates as you wish.

Specifications

---

Functional limitations:

In this mode, the following functional limitations apply:

Serial data output - only available in mode C1 on clocks.
Analogue output - Unavailable on clocks.

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Time reference	Internal crystal oscillator
Summer/Winter correction	Automatic summer/winter time correction Can be disabled to show GMT / UTC / Zulu time Has internal calendar for European and US time zone changeovers.
Available formats	HH:MM:SS (HH:MM on 4 digit displays) DD.MM.YY calendar DDD days
Precision	+/- 10 seconds per month

Lineariser

Introduction

The lineariser is easy to use. You can switch it on or off at any time, so you can compare linearised and non-linearised responses.

It is located at the end of the display process, so you can enter readings which the un-linearised display shows, and the ideal readings you would like the display to show.

It can linearise all physical displayed values, including rate, total, temperature, load, resistance etc., but excluding time.

It makes a curve having from 3 up to 31 points.



Examples: You can use the lineariser function to:-

• Improve the precision of a weighing system which has repeatable non-linearity.
• Use a liquid pressure sensor at the bottom a curved tank to show actual liquid volume
• Convert a 4-20mA power factor signal to read signed power factor (4-12mA = -0.5 to -1, 12-20mA = +1 to +0.5)
• Convert differential pressure across an orifice plate or weir to show flow rate
• etc...

You can view and edit any part of the lineariser table.

1. Prepare your data

Before you enter any values, record what the display shows, without linearising, at several points and what you want it to show.

For example, in a weighing system, the engineer checked various readings with test weights and wrote down these results...

Adding load: Results with Lineariser off

Step	Test Weight (kg)	Displayed value (kg)
1:	0.0	0.0
2:	100.0	100.2
3:	200.0	200.5
4:	300.0	300.3
5:	400.0	400.1
6:	500.0	500.1

He tested in the reverse direction also, to ensure the errors were repeatable.

Removing load: Results with Lineariser off

Step	Test Weight (kg)	Displayed value (kg)
7:	500.0	500.1
8:	400.0	400.1
9:	300.0	300.3
10:	200.0	200.5
11:	100.0	100.2
12:	0.0	0.0

We can see that the errors are repeatable, they are the same when we add or remove weight, so can be improved with the lineariser.



We will write down our plan for the lineariser...

Our linearisation table

This table is used in the video, at the end of this page.

Un-linearised Value			Desired Value
1:	In.01	0.0	rd.01	0.0
2:	In.02	100.2	rd.02	100.0
3:	In.03	200.5	rd.03	200.0
4:	In.04	300.3	rd.04	300.0
5:	In.05	400.1	rd.05	400.0
6:	In.06	500.1	rd.06	500.0

This table has 6 rows, so there are 6 calibration points

Important
In.02 > In.01
In.03 > In.02
In.04 > In.03 ...

2. Activate the lineariser

Press buttons 2 and 3 together for 3 seconds and step through the options with the OK button until you see  Lin.x

Lin.1.  = The lineariser is turned on.
Lin.0.  = The lineariser is turned off.

You can change from one to the other using the UP or DOWN button.

Select  Lin.1. To proceed, press  OK

3. Declare the number of calibration points

The display will say  nr.XX. XX is the number of linearisation points you want to use, from 3 to 31 points. For our example table, we will enter  nr.06 

4. Enter or edit the calibration values for each point

1. To view existing calibration values, press  OK. If you want to edit a point, select each digit you want to edit with  Digit. Use the Up and Down buttons to edit the value. To save a value, press  OK .

You will now see  rd.01.  Press OK to edit it or UP or Down Button skip and move onto another value.

2. Or, press the UP or Down button to move on to the next or previous value.

3. Do this for each point in your table.

5. How to SAVE your linearisation table

When you reach the beginning or end of the list, you will see  SAVE.  To save your lineariser table, press  OK.

This video demonstrates how to linearise your meter, using the example settings described on this page.

Contact Closure Logic Inputs

The 6 contact closure logic inputs are on the bottom row, between the lockout switches and the power connector.

If your meter has the P.FrE power frequency function fitted, only logic ports 1 to 5 are available.

The ports accept contact closure or NPN inputs






You can configure each contact closure input port to function as follows:-

• 'rSt': Reset
  Clear counts, Tare, Timer, latched alarms, peak/Valley memory etc.
  Default = logic input #3
  
• 'tArE': Tare
  Clear the display value to 0, regardless of weight acting upon load cell
  Default = logic input #1
  
• 'HOLd': Hold
  Freeze the meter state at a moment in time
  
• 'nEtt': Nett
  Show nett value
  
• 'GrOS': Gross
  Show gross value
  
• 'PEA.G': Peak Gross
  Show tracking peak (maximum) Gross value. PV LED is Yellow
  
• 'VAL.G': Valley Gross
  Show tracking valley (minimum) Gross value. PV LED is Green
  
• 'PEA.n': Peak Nett
  Show tracking peak (maximum) Nett value. PV LED is Yellow
  
• 'VAL.n': Valley Nett
  Show tracking valley (minimum) Nett value. PV LED is Green
  
• 'd.tAr': Display Tare
  Show the Tare amount
  
• 'rEV.1': Reverse display
  Show mirror image of the display for Heads-Up
  
• 'CJ t': Cold Junction Temperature
  Show the CJ temperature at back of meter.
  
• 'nOnE': None
  No function for this logic input
  Default = logic input #2
  

Peak and valley values update up to 10 times per second, with a maximum bandwidth of 7Hz. This will reduce if you add display averaging / filtering.

Signal Types
NPN Transistors	Switching 5V DC at 1mA Must saturate to lower than 1V Vce
Normally Open Contacts	Switching 5V DC at 1mA We recommend you use wiping contacts, to mechanically clear any oxidation or tarnishing of the contact surfaces.
Normally Closed Contacts	Switching 5V DC at 1mA We recommend you use wiping contacts, to mechanically clear any oxidation or tarnishing of the contact surfaces.
De-bounce	Each input port has its own configurable de-bounce time which you can adjust to suit your application. Range 0 to 9999 milli-seconds.

How to configure your external contact closure input functions:

Unlock the configuration menu



4. Press the △ or ▽ button until you see E.CC.Y

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5. Press  OK

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You will see  CC 1

---

6. Choose which Contact Closure channel to view or edit - press △ or ▽ button to select a channel.

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7. Press  OK

---

8. Choose the function of that channel with △ or ▽.

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9. To save that function, press  OK

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10. Choose a debounce time for that channel. The default is 50 mS.

Select each digit in the numeric value with  Digit

Increase or decrease the value of the selected digit with the △ or ▽ button.

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11. To save your choice, press  OK

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Do this for as many contact closure inputs as you want to configure.

When you are finished go to CC1 and press button 3
You will see SAVE

To save your choices, press  OK. Repeat until you return to the normal display.

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This video demonstrates how to edit your contact closure functions.

Analogue Output: 4-20mA or 0-10V

High precision, isolated and scaleable analogue output plug in option module.

Connections

4-20mA Active Source output. This will drive a current into a passive device such as a moving coil meter. This is the most common 4-20mA output configuration

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4-20mA Passive Sink output. This will modulate a current from a connected external excitation voltage. The output stage acts similar to a 4-20mA 2 wire transmitter

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0-10V active output.





Unlock the configuration menu.

Press Button 3 for 3 seconds : An Out 

The display will report the analogue output signal range which it is presently set for...

0-20 mA =  0-20
4-20 mA =  4-20
0-10 V =  0-10

Press the △ or ▽ button to select your preferred output signal range.

To save your choice, press  OK



If you want to change your output board function from Voltage to Current, or from Current to Voltage, you must change the internal switch positions on the analogue output module...





See the short video near the end of this page, which will explain how to change the switch positions.



Choose which variable will generate the analogue output...

Press the △ or ▽ button repeatedly to go up and down this list.

NEtt.  The real-time nett value GroS.  The real-time gross value PEA.g.  The memorised maximum gross value VAL.g.  The memorised minimum gross value PEA.n.  The memorised maximum nett value VAL.n.  The memorised minimum nett value tArE.  The real-time tare value CJ t.  The real-time on-board temperature

To save your choice, press  OK

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Now Set the calibration values for your analogue output.

Out.L 
The measurement which generates the minimum analogue output signal. For example 4mA.



It is easy to edit the value:
1. Select each digit in the numeric value with  Digit

2. Increase or decrease the value of the selected digit with the △ or ▽ button.

3. To save your choice, press  OK



Out.H 
The measurement which generates the maximum analogue output signal. For example 20mA.



It is easy to edit the value:
1. Select each digit in the numeric value with  Digit

2. Increase or decrease the value of the selected digit with the △ or ▽ button.

3. To save your choice, press  OK

This video shows how to adjust the analogue output.

This video shows how to install an analog output board.

Specifications

How to install	This is a plug-in module which you can add to your meter at any time. You do not need special tools or software
Available outputs	Select 0-20mA, 4-20mA (active or passive) or 0-10V
Drive resistance 20mA Active	Can drive into loads from 0 Ohms to 600 Ohms, using the Active output terminals. 16V DC open circuit output.
Drive resistance 20mA Passive	Can modulate loops from 0 Ohms to 1000 Ohms, using the Passive output terminals. 24V DC external drive voltage
Drive resistance 0-10V	Can drive into loads greater than 600 Ohms. 30mA short circuit current.
Scaling method	Define display value for 0mA, 4mA or 0V Define display value for 20mA or 10V
Data which generates the analogue output	Choose which data your Analogue output will be derived from: 1. Nett Value 2. Gross Value 3. Peak Gross value 4. Valley Gross value 5. Peak Nett value 6. Valley Nett value 7. Tare Value 8. CJT on-board temperature
Galvanic Isolation	Optically isolated from all ports up to 250 VAC
Proportionality	You can scale the analogue output as directly proportional or inversely proportional. For example, directly proportional: 0 to 50 000 kg on the display produces 4 to 20mA output. Inversely proportional: 0 to 50 000 kg on the display produces 20 to 4mA output.
Response speed	Updates 10 times per second.
Resolution	18 bit resolution
Precision	+/- 0.05% of range
Temperature stability	+/- 50ppm of range, per Deg C

This video shows how to access and move the switches on the analogue output board, to select either current or voltage output.

Analogue Output: Symmetrical -10 to +10V

Unlock the configuration menu.

Press the Output button for 3 seconds.

This video shows how to adjust the analogue output.

This video shows how to install an analog output board.

Specifications

How to install	This is a plug-in module which can be added to your meter at any time. No special tools or software needed.
Available outputs	Fixed as -10V to +10V
Drive resistance 0-10V	Can drive into loads greater than 600 Ohms. 30mA short circuit current.
Scaling method	Define display reading for -10V Define display reading for +10V
Source of data used to create analogue output	Analogue output can be derived from one of several data sources which you can choose from: 1. Display value (default) 2. Nett Value 3. Gross Value 4. Tare Value 5. Raw A/D
Galvanic Isolation	Optically isolated from all ports up to 250 VAC
Proportionality	You can freely scale the analogue output as directly proportional of inversely proportional. For example, directly proportional could be -50 000 to 50 000 kN on the display produces -10 to +10V output. Inversely proportional could be -50 000 to 50 000 kN on the display produces +10 to -10V output.
Response speed	Updates 10 times per second.
Resolution	18 bit resolution
Precision	+/- 0.05% of range
Temperature stability	+/- 50ppm of range, per Deg C

Alarm Relay Output Options

Use alarm relays for control, warning and shutoff in many industrial processes.

The INT5 has fail-safe alarms. If power is lost to the meter or if the microprocessor fails, the alarms will be active.

Choose from several output types:









You can also make the numeric display change colour whenever the input signal is in an alarm condition. The most recent active alarm will determine the alarm display colour.

1. Alarm modes:
Your meter has many useful alarm modes to help with control and warning applications. Click or tap on any of the modes for more information.

Hi
High alarm - alarm occurs if the input signal reaches or exceeds the Setpoint value.

Lo
Low alarm - alarm occurs if the input signal falls to or below the Setpoint value.

PC.Hi
Pump Control High alarm - alarm occurs if the input signal reaches or exceeds the Upper Setpoint value SEt.H . The relay will stay in that state until the signal drops to or below the Lower Setpoint value SEt.L

PC.Lo
Pump Control Low alarm - alarm occurs if the input signal reaches or falls below the Lower Setpoint value SEt.L . The relay will stay in that state until the signal rises to or above the Upper Setpoint value SEt.H

In.b
In Band alarm - alarm occurs if the input signal goes within two limits. The lower limit is set with SEt.L and the higher limit is set with SEt.H

Out.b
Out Band alarm - alarm occurs if the input signal goes outside two limits. The lower limit is set with SEt.L and the higher limit is set with SEt.H

FL.Hi
High alarm with manual In-flight compensation. Alarm occurs if the input signal reaches or exceeds the Setpoint value, less the expected in-flight (dribble) amount, which is manually set to a fixed amount.

FL.Lo
Low alarm with manual In-flight compensation. Alarm occurs if the input signal reaches or falls below the Setpoint value, plus the expected in-flight (dribble) amount, which is manually set to a fixed amount.

FL.H.A
High alarm with automatic adaptive In-flight compensation. Alarm occurs if the input signal reaches or exceeds the Setpoint value, less the expected in-flight (dribble) amount, which is automatically set, according to previous alarm overshoot.

FL.L.A
Low alarm with automatic adaptive In-flight compensation. Alarm occurs if the input signal reaches or falls below the Setpoint value, plus the expected in-flight (dribble) amount, which is automatically set, according to previous alarm overshoot.

LAt.H
Latching High alarm - alarm occurs if the input signal reaches or exceeds the Setpoint value. Remains in alarm even if signal returns to a non-alarm level. Can be reset using the reset logic input port.

LAT.L
Latching Low alarm - alarm occurs if the input signal reaches or falls below the Setpoint value. Remains in alarm even if signal returns to a non-alarm level. Can be reset using the reset logic input port.

PuL.H
Pulsed High alarm - alarm occurs if the input signal reaches or exceeds the Setpoint value. The output will pulse once only, for a duration set with t.Out, in a range from 0.1 to 99.9 seconds. The alarm annunciator LED will be red for the duration of the pulse and will be switched off at all other times.

PuL.L
Pulsed Low alarm - alarm occurs if the input signal reaches or falls below the Setpoint value. The output will pulse once only, for a duration set with t.Out, in a range from 0.1 to 99.9 seconds. The alarm annunciator LED will be red for the duration of the pulse and will be switched off at all other times.

OFF
This channel is turned off and will not activate its alarm relay under any conditions.





View alarm setpoints:
To view the setpoint level for each alarm relay, briefly press the Alarm button, repeatedly.

The display will be dimmed and the alarm setpoint is represented by the numeric value.

The alarm channel identifier will be flashing. See the example below, where Alarm channel 2 has a setpoint of 1234 ...

Specifications

How to install	This is a plug-in module which can be added to your meter at any time. No special tools or software needed.
Available outputs	Option SPCO: 4 x Mechanical Relays Single Pole Change Over Device = PE515005 Rated 2A 250VAC Resistive Option SSAC: 4 x Solid State AC Relays Single Pole Single Throw Device = TLP3063 Rated 100mA 250VAC Resistive Option SSDC: 4 x Solid State DC Relays Single Pole Single Throw Device = AQV112KL Resistance: 2 Ohms Maximum Rated 500 mA 60 VDC Resistive
Available combinations	0, 1 or 2 x Serial comms output Options can be installed, which may be RS232 or RS485, in any combination, as well as any or no analogue output.
Isolation	Optically isolated from all ports up to 250 VAC
Speed	Updates 10 times per second, mechanical response 15mS You can also specify a minimum amount of time the signal needs to be in alarm for, before the relay will change state. Settable 0-99 seconds You can also specify a minimum amount of time the signal needs to be out of alarm for, before the relay will change state. Settable 0-99 seconds
Relay states	The relay can be set to energise or de-energise on alarm. Relays will de-energise on loss of power to the meter or on loss of communication from the microprocessor.
Hysteresis	The hysteresis is unidirectional and can be set from 0 to 999999

This video demonstrates how to install an alarm output board.