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West 8080-8081
1/8 DIN Dual Color Temperature Indicator
Temperature Control
Applications Notes
All West Controllers
All CAL Controllers
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Quick Specs...
- Large Five Digit Display
- Color Change On Alarm
- Min/Max Value Hold
- 2 Process Alarms
- Security Lock
- Process Transmitter PSU
- PV retransmit option
- RS485 comms option
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Overview / Design Principle:
The West 8080 temprature indicator offers high accuracy
temperature or process inputs. The custom-designed display is
larger than other instruments of this size, and can be set to
change colour to indicate alarm status.
Features and Benefits:
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Applications:
???
Industries:
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Features |
| Output
Configuration: |
Up to 3 total., max 2 for Alarms,
max 1 for retransmission of PV |
| Alarm Types: |
Process high, process low, direct acting,
process high, process low reverse and logical OR |
| Viewable Values: |
Process variable, alarm values, maximum
value, minimum value and elapsed time since reset |
| Human Interface: |
4 button operation, 5 digit 18mm high colour
change display, plus set-up and alarm indicators |
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Temperature Version |
| Input: |
J, K, R, S, T, B, &
N Thermocouple, 3 or 4 Wire PT100, 50. per lead maximum
(balanced) |
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Impedance: |
>100MΩ for
Thermocouple |
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Accuracy: |
+/- 0.1% of input
span +/- 1 LSD (T/C CJC better than 0.5°C) |
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Sampling: |
4 per second, 14
bit resolution |
| Sensor
Break Detection: |
<2 secs, all alarms
activate |
| DC
Process Version |
| Input: |
0-20/4-20/10-50mA,
0-5/1-5/0-10/2-10V, +/-100mV, +/-1V, +/-10V |
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Scaling: |
-19999 to 99999,
dec point as required. Up to 10 scaling points for non-linear
applications |
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Impedance: |
>100KΩ for mV
range, >950KΩ for V ranges, 10Ω for 20mA ranges and 1Ω for 50mA
range |
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Accuracy: |
+/- 0.01% of input
span typical (+/- 0.05% max) +/- 1 LSD |
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Sampling: |
10 per second, 14
bit resolution |
| Sensor
Break Detection: |
<2 secs (except
zero based ranges), all alarms activate |
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Totalising of PV by Interval: |
Seconds, minutes or
hours |
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Transmitter Power Supply: |
20-28V DC (24V
nominal), max load 910Ω (22mA at 20V). Fitted as standard |
| Outputs
& Options |
| Alarm
1: |
Open collector NPN
transistor (30VDC 100 mA max) and relay (Contacts SPDT 3Amp) |
| Alarm
2: |
Open collector NPN
transistor (30VDC 100mA max) fitted as standard. Optional relay
(Contacts SPDT 3Amp resistive at 240VAC/5Amp at 110V),
non-latching |
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Retransmit Output: |
0-20/4-20mA into
500Ω max, 0-10/0-5V into 500Ω min. Accuracy typically +/- 0.25%
250mS update |
| Digital
Input: |
External security
lock (also Tare function on Process Version). Volt free or TTL
compatible |
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Communications: |
2 wire RS485, 1200
to 9600 baud. ASCII protocol |
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Operating & Environmental |
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Temperature & RH: |
0 to 55°C (-20 to
80°C storage), 20% to 95%RH non-condensing |
| Power
Supply: |
100 to 240V 50/60Hz
7.5VA (optional 20 to 50V AC 7.5VA/22 to 55V DC 5W) |
| Front
Panel Protection: |
IEC IP66 (Behind
panel protection is IP20) |
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Approvals and Certification: |
CE, UL & UlC |
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