Features: | | |
Output configuration | Up to 3 possible, for latching trip relays, alarm/annuncator relays, 24VDC transmitter power supply or retransmit of process value or limit trip setpoint | |
Alarm 1 & 2 types | Process high, process low, Limit SP deviation, band, logical OR alarms or trip annunciator. Alarms have fully adjustable hysteresis | |
Output reset action | Limit output can be reset only when exceed condition is absent. Local or remote reset options | |
Annunciator reset action | Annunciator output can be reset at any time. Local or remote reset options | |
Human Interface | 4 button operation, dual 4 digit 10mm & 8mm (6700+ & 8700+), 13mm & 10mm (4700+) high LED displays, optional choice of colours (Red/Red, Red/Green, Green/Red or Green/Green), plus 4 LED indicators | |
PC configuration | Off-line configuration from PC serial port to dedicated config socket (comms option not required). Configuration Software for Windows 98 or higher. West Part Number: PS1-CON | |
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Input: | | |
Thermocouple | J, K, C, R, S, T, B, L, N & PtRh20%vsPtRh40% | |
RTD | 3 Wire PT100, 50Ω per lead maximum (balanced) | |
DC Linear | 0 to 20mA, 4 to 20mA, 0 to 50mV, 10 to 50mV, 0 to 5V, 1 to 5V, 0 to 10V, 2 to 10V. Scaleable -1999 to 9999, with adjustable decimal point | |
Impedance | >10MΩ for Thermocouple and mV ranges, 47KΩ for V ranges and 5Ω for mA ranges | |
Accuracy | ±0.1% of input range ±1 LSD (T/C CJC better than 1°C) | |
Sampling | 4 per second, 14 bit resolution approximately | |
Sensor break detection | <2 secs (except zero based DC ranges), Limit trip and annunciators activate. High alarms activate for Temperature and mV ranges, low alarms activate for, mA or V ranges | |
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Outputs & Options: | | |
Limit trip relay outputs | Latching SPDT, contacts 5Amp resistive at 240V AC, >100,000 operations | |
Alarm relay outputs | Non-latching SPDT, contacts 2Amp resistive at 240V AC, >500,000 operations | |
SSR driver alarm outputs | Drive capability >10V DC in 500 minimum | |
Triac alarm outputs | 0.01 to 1 Amp AC, 20 to 280Vrms, 47 to 63Hz | |
DC linear retransmit outputs | 0 to 20mA, 4 to 20mA into 500Ω max, 0 to 10V, 2 to 10V, 0 to 5V into 500Ω min. Accuracy ±0.25% at 250Ω (degrades linearly to 0.5% for increasing burden to specified limits) | |
Transmitter power supply | Output 24VDC (nominal) into 910Ω minimum to power external devices | |
Communications | 2 Wire RS485, 1200 to 19200 Baud, Modbus and ASCII protocol (selectable) | |
Digital input | Volt free or TTL input. -0.6 to 0.8V or contact closure resets latched relays and annunciators | |
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Operating & Environmental: | | |
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 48V AC 7.5VA/22 to 65V DC 5 watts) | |
Front panel protection | IEC IP66 (Behind panel protection is IP20) | |
Standards | FM, CE, UL & ULC recognised | |