•
FM approved limit controller
• Comnact economical 1 / 16 DIN size
• Easy to use yet powerful
• Time of over temperature condition indication
•
User selectable as a high or low limit
•
Universal Inputs, Timer, Register, Retransmission, Communication
• NEMA 4 IP65 Front Panel
This FM approved Limit Controllers
will shut down the process by disconnecting power from the process
if the controller reads a value above setvalue for a Hi Limit
Controller or below set point if configured as a low limit control.
The controller will remain in this state until the temperature
has dropped below the set value and the reset button has been
pressed. The control also has a timer to indicate the total time
the setpoint is exceeded i e (duration of over temperature) it
also has a register that will indicate the maximum temperature
reached. Field programmable Low / High Process alarms and deviation
alarms or band alarms are an option.
Specifications:
INPUT
Programable. . . . . . Thermocouple, J K T R B S L N
RTD, PT 100
mV, 0-50mV DC
VDC, 0-5VDC 1-5VDC, 0-lOVDC, 2-lOVDC
mA, 0-20mA 4-20mA
Remote Reset Input Voltage free contact closure required for reset
Input sampling rate 0.25s
OUTPUTS
Output 1. . . . . . . .Limit Relay SPDT 5Amp at 120/240 VAC resistive
Output 2. . . . . . . .Alarm/Annunciator SPDT 2A 120/240 VAC resistive
Output 3. . . . . . . .DC Linear ( recorder ) 0-20mA 4-20mA 0-l OV 0-5V
SPDT relay 2A resistive 120/240 VAC
OUTPUT. . . . . . . . .Limit Control Output
Output type selection
The output type (high limit type or Low limit type) is selectable by the user via dipswitch.
Accuracy. . . . . . . .+ -0.3%(of output span)
Noise-rejection ratio. Normal Mode 40dB (50/60Hz)
Common mode 120dB(50/60Hz)
Retransmission output (Optional specifications RET)
ALARMS. . . . . . . . .Two soft alarms upto two outputs can be used for alarms
Combination Alarms. . .Logical OR or AND of alarms to an individual hardware output
COMMUNICATION
Baud rate. . . . . . . 1200,2400,4800,9600 BPS
Type. . . . . . . . . .Serial asynchronous UART to-UART link RS 485
Max # of zone. . . . . 32
Physical Layer. . . . .RS 485
Operating Temp. . . . .0 to 55 deg C
RH. . . . . . . . . . .20% - 95% nn condensing
Supply Voltage. . . . .90 - 264 VAC 50/60 Hz or 22-50 VDC ( Optional )
Accuracy. . . . . . . .+/- .25% of span +/- LSD
Dimensions. . . . . . .48 X 48 X 100 mm
Features: