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THIS PRODUCT IS NOW OBSOLETE AND NO LONGER AVAILABLE
 

Dwyer Series 8500 Temperature/Process Control

1/8 DIN, Microprocessor Based, Horizontal or Vertical Format, Fully Programmable
 

The Dwyer Series 8500 Temperature/Process Control provides an impressive selection in a compact, economical 1/8 DIN package. Choose from two case styles in horizontal or vertical formats. Features include on-off, time proportioning, proportional, PI, PD or full PID control - fully programmable from the front panel - or use Self-Tune® PID. Inputs are selectable from a variety of thermocouple types including J, , T, E, N or L; DIN NIST or Ni RTD's. Output choices include solid state relay, mechanical relay, 5 VDC - ideal for driving an external SSR - or isolated 4-20 mA proportional current. An optional programmable alarm provides a full array of alarm action configurations including high alarm, low alarm and high/low guardband alarm. Manual reset, power-up inhibit and power interrupt reset provide additional alarm flexibility. A water and corrosion resistant front panel (NEMA 4X, IP65), input fault timer, digital input filter, Self-Tune® ramp to setpoint, four password protected security levels and °F or °C display selection are all standard. Entire electronics package is easily field replaceable without wiring changes thanks to the removable front panel.
 
Model No.1
Alarm
Input
Output 2
D85011-(1)(0)
D85012-(1)(0)
D85013-(1)(0)
D85015-(1)(0)
D85021-(1)(0)
D85022-(1)(0)
D85023-(1)(0)
D85025-(1)(0)
D85111-(1)(0)
D85112-(1)(0)
D85113-(1)(0)
D85115-(1)(0)
D85121-(1)(0)
D85122-(1)(0)
D85123-(1)(0)
D85125-(1)(0)
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Thermocouple
Thermocouple
Thermocouple
Thermocouple
RTD
RTD
RTD
RTD
Thermocouple
Thermocouple
Thermocouple
Thermocouple
RTD
RTD
RTD
RTD
SSR
5 VDC
Relay
4-20 mA
SSR
5 VDC
Relay
4-20 mA
SSR
5 VDC
Relay
4-20 mA
SSR
5 VDC
Relay
4-20 mA
1 Specify suffix 1 for horizontal or 0 for vertical mounting.
2 When ordering a control to operate contractor or solenoid loads greater than 100 mA, select the SSR output instead of the Relay. If the relay is selected, order part number A-600. R/C snubber.
 
PHYSICAL DATA
Input Impedance:   Thermocouple + 3 megohms minimum, RTD current = 200 A maximum
Sensor Break or
Short Protection:
  De-energizes control output to protect system
Setpoint Range:   Selectable
Display:   Two 4 digit, 7 segment LED; 0.4" (10 mm) high - horizontal models; 0.3" (7.62 mm) high -vertical models
Control Action:   Selectable for Reverse (usually heating) or Direct (usually cooling)
Accuracy:   ±0.25% of span, ±1 degree
Resolution:   1 degree or 0.1 degree
Temperature Stability:   2.3V/°F (4 V/°C) typ., 4.5 V/°F (8 V/°C) maximum
Common Mode Rejection:   140 db minimum at 60 Hz
Normal Mode Rejection:   65 db typical, 60 db at 60 Hz
Isolation:   Relay and SSR outputs; 1500 VAC. 0-20 mA output; 500 VAC. 5 VDC output is not isolated
Power Consumption:   5 VA maximum
Supply Voltage:   100 to 240 VAC nominal, +10%-15%, 50 to 400 Hz, single phase; 132 to 240 VDC +10%-20%
Operating Temperature Range:   14 to 131°F (-10 to 55°C)
Storage Temperature Range:   -40 to 176°F (-40 to 80°C)
Humidity Range:   0 to 90% up to 104°F (40°C) non-condensing, 10 to 50% at 131°F (55°C)
Memory Backup:   Non-volatile memory. No batteries required
Control Output Ratings:   SSR:  2.5 A at 240 VAC resisting at 77°F (25°C). De-rate to 1.25 A at 130°F (55°C)
Relay:  SPDT, 10 A at 240 VAC resistive
Alarm Relay:  SPST, 3 A at 240 VAC resistive
Switched Voltage (non-isolated):  5 VDC at 20 mA
Proportional Current:  0-20 mA DC, scaleable into 600 ohms maximum.
Weight:   10 oz. (369 g)
 
SUGGESTED SPECIFICATIONS
Temperature/Process Controller shall be 1/8 DIN (horizontal)(vertical), microprocessor based with two four digit LED displays for setpoint, alarm status and °F or °C. Input shall be (selectable J, K, T, E, N or L thermocouple)(DIN-RTD). Output shall be (SSR)(5 VDC)(Relay)(Isolated 4-20 mA) programmable for manual or automatics Self-Tune® PID control (with)(without) alarm. Front panel shall be designed to meet NEMA-4X, IP 65 ratings for weather and corrosion resistance. Accuracy shall be ±0.25% of span, ±1 degree. Temperature/Process controller shall be Dwyer Model D85 _____.
 
 
 
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