Temperature Measurement

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Home | Electronic Temperature Transmitters/Switches | 820/821 Series Digital Temperature Indicators | Product Specifications

 

820/821 Series Digital Temperature Indicators
Product Specifications

 

SPECIFICATIONS
Temperature ranges Standard ranges from -325 °F to 1,100 °F (-200 °C to 600 °C) Customer rescalable with optional PC interface and software
Temperature sensor RTD (PT100 DIN EN 60751, Class A)
Housing material 316 stainless steel
Probe material 316 stainless steel standard
Maximum pressure 500 psig (on probe)
Power supply 9-36 Vdc, polarity protected
Supply effect 0.005%/V
Power consumption 15 mA @ 24 Vdc + output current – 950 mW max.
20 mA @ 24 Vdc for PNP output – 500 mW max.
20 mA @ 24 Vdc + sourcing current for NPN output
50 mA @ 24 Vdc for relay output – 1200 mW max.
Current output 4 mA to 20 mA (3-wire configuration) linear to temperature
Max load on current output (Vsupply-9V ) / 20 mA, Ω
Optional switching output Transistor NPN (max 100 mA source ) or
Transistor PNP (max 100 mA sink) or
Relay SPDT 0.5A @ 240 Vac
Optional switching logic N.C. or N.O. software selectable
Optional switching ranges Customer programmable between -325 °F to 1,100 °F (-200 °C to 600 °C)
Isolation 500 Vdc input /output (between probe and output signal)
Electrical connection M12 x 1 (5-pin) or integral cable
Hysteresis 1% of range standard; customer programmable optional
Accuracy ≤0.22% full scale; ≤0.1% full scale optional
Open circuit detection Upscale (22 mA) or downscale (2.5 mA) current output.
Error message on LED display
Warm-up 30 seconds
Response time 0.5 sec to 30 sec (software selectable)
Display 4-digit LED, decimal point selectable by software
Display resolution ±0.02% F.S. ±1 digit
RFI effect 1% or less typical
Temperature ranges Ambient   -40 °F to 176 °F (-40 °C to 80 °C)
Effect       <0.01% FS/ °C
Storage   -58 °F to 185 °F (-50 °C to 85 °C)
Environmental protection NEMA 4/ IP 65

 

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