TCS SZ1145 General Purpose Monitor

Description

The SZ1145 is a microprocessor-based monitoring and alarm interface designed to monitor up to four 1000 Ω platinum RTD temperature sensor inputs and up to two 4-20 mA inputs.

Features:

• Stand-alone or network operation

• Independently programmable high and low limits for each input

• Independently programmable manual or automatic alarm reset

• Change of state factor with programmable hysteresis

• 32 character LCD display

• Status LEDs

• Relay output to activate additional auxiliary communication devices or external alarm circuit

• Four RTD temperature inputs

• Two 4-20 mA analog inputs suitable for a broad variety of transducers

Specifications:

General Accuracy: +/- 0.5%
Programming: EIA RS485 interface
Display: 32 character LCD
Communications: RS485, half duplex
Memory backup: Non-volatile EEPROM, no battery required
Environmental Operating temperature: 32 to 131°F (0 to 55°C)
Operating humidity: 0 to 100% RH, noncondensing
Storage temperature: 14 to 140°F (-10 to 60°C)
Electrical Supply voltage: 24 VAC +/- 20%
Inputs: Four platinum RTDs, range: 20 to 120°F (-6.7 to 48.9°C) two 4-20 mA analog and two digital (dry contact)
Outputs: One digital (SPST dry contact, 24 VAC @ 1 A) configurable
Analog input impedance: 250 Ω
Common mode rejection: 100 [email protected] 60 Hz
Power Consumption: 5 VA max.