13 Appendix B Technical Specification

 

General

Environmental performance

Temperature limits

Operation: 0 to 55°C (32 to 131°F),

Storage: -20 to 70°C (-4 to 158°F)

Humidity limits

Operation: RH: 0 to 90% non-condensing

 

Storage: RH: 5 to 90% non-condensing

Panel sealing

IP66, NEMA Type 12

Shock

10 x 15g pulses

Vibration

2g peak, 10 to 150Hz

Altitude

<2000 metres

Atmospheres

Not suitable for use in explosive or corrosive atmospheres.

Electromagnetic compatibility (EMC)

Emissions and immunity

EN61326-1 Suitable for domestic, commercial and light industrial as well as heavy industrial environments. (Class B emissions, Industrial Environment immunity.

Low voltage versions are suitable for industrial environments only.

Electrical safety

(BS EN61010)

Installation category II; Pollution degree 2

Installation category II

The rated impulse voltage for equipment on nominal 230V supply is 2500V

Pollution degree 2

Normally only non conductive pollution occurs. Occasionally, however, a temporary conductivity caused by condensation shall be expected.

Physical

816

808

804

Panel mounting

1/16 DIN

1/8 DIN

1/4 DIN

Weight grams

250

350

420

Panel cut-out dimensions mm

45 x 45

45 x 92

92 x 92

Panel depth

All 90 mm

 

Operator interface

Type

LED

Main PV display

4 digits green

Secondary display

4 digits amber

Third display

4 digits amber

Status beacons

Units, outputs, alarms, active setpoint

 

Power requirements

816

100 to 230Vac, +/-15%

48 to 62Hz, max 6W

 

808 and 804

100 to 230Vac, +/-15%

48 to 62Hz, max 9W

 

 

Approvals

 

CE, cUL listed (file E57766)

Suitable for use in Nadcap and AMS2750D applications under Systems Accuracy Test calibration conditions.

Other standards pending.

 

Transmitter PSU (not 816)

Isolation

264Vac double insulated

Output Voltage

24Vdc, >28mA, <33mA

 

Communications: serial communications option

Protocol

Modbus RTU client

Modbus RTU Host broadcast (1 parameter)

Isolation

264Vac double insulated

Transmission standard

EIA485 2-wire

 

Process Variable Input

Calibration accuracy

<±0.25% of reading ±1LSD (1)

Sample rate

4Hz (250mS)

Isolation

264Vac double insulated from the PSU and communications

Resolution (µV)

< 0.5µV with a 1.6 second filter

Resolution (effective bits)

>17 bits

Linearisation accuracy

<0.1% of reading

Drift with temperature

<50ppm (typical) <100ppm (worst case)

Common mode rejection

48 - 62 Hz, > 120dB

Series mode rejection

48 - 62 Hz,> 93dB

Input impedance

100MΩ

Cold junction compensation

>30 to 1 rejection of ambient temperature

Cold junction accuracy

<+1oC at 25oC ambient

Linear (process) input range

-10 to 80mV, 0 to 10V with 100KΩ/806Ω external potential divider module

Thermocouple Types

K, J, N, R, S, B, L, T, C

Resistance thermometer Type

3-wire, Pt100 DIN43760

Bulb current

0.2mA

Lead compensation

No error for 22 ohms in all 3 leads

Input filter

Off to 59.9 seconds

Zero offset

User adjustable over the full display range

User calibration

2-point gain & offset

 

Notes

(1) Calibration accuracy quoted over full ambient operating range and for all input linearisation types.

 

OP4 relay

Type

Form C (changeover)

Rating

Min: 100mA @ 12Vdc.

Max: 2A @ 264Vac resistive

Functions

Control, alarms or events

 

 

Current Transformer Input

Input current

0 to 50mA rms 48/62Hz, 10Ω burden resistor fitted inside the module

Calibration accuracy

<1% of reading (typical)

<4% of reading (worst case)

Isolation

By using external CT

Input impedance

<20W

Scale

10, 25, 50 or 100Amps

Functions

Partial load failure, SSR fault

 

Digital input (DigIn 1 and 2, Digital Input 2 is not in 816)

Contact

Contact open >600Ω Contact closed <300Ω

Input current

<13mA

Isolation

None from PV or system

264Vac double insulated from PSU and communications

Functions

Include alarm acknowledge, SP2 select, manual, keylock, timer functions, standby select, RSP select

 

Logic Output Channels

Rating

On/High 12Vdc at <44mA

Off/Low <300mV at 100mA

Isolation

None from PV or system

264Vac double insulated from PSU and communications

Functions

Control, alarms or events

 

Relay Output Channels

Type

Form A (normally open)

Rating

Min: 12V, 100mA dc Max: 2A, 264Vac resistive

Functions

Control, alarms or events

 

Analogue Output Channels (3) (OP3 808 and 804 only)

Rating

0-20mA into <500W

Accuracy

+ (<0.25% of reading + <50μA)

Resolution

13.5 bits

Isolation

264Vac double insulated

Functions

Control, retransmission

 

Note (3) Voltage output can be achieved by external adaptor.

 

Software features

Control

 

Number of loops

1

Loop update

250mS

Control types

PID, ON/OFF,

Cooling types

Linear, fan, oil, water

Modes

Auto, manual, standby (Off).

Overshoot inhibition

High, low

 

Alarms

Number

3

Type

Absolute high and low, deviation high, low or band

Latching

Auto or manual latching, non-latching, event only

Output assignment

Up to three conditions can be assigned to one output

 

 

Other Status Outputs

Functions

Including sensor break, timer status, loop break, heater diagnostics

 

Timer

 

Modes

Dwell when SP reached.

Delayed control action

Soft start limits power below PV threshold

 

Current monitor

Alarm types

Partial load failure, over current, SSR short circuit, SSR open circuit

Indication type

Flashing beacon

 

Special features

Features

Energy monitoring, Recovery point