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SPECIFICATIONS*
1/8 DIN Limit Controller
8700+
TM
Affordable, Well-Featured,
Easy to Use and Adaptable
COMMUNICATIONS INTERFACE
User-selectable: 2-wire, RS-485 serial
communications option with choice of Modbus
RTU or ASCII protocol; 1200 to 19200 baud
PC Configuration: Offline configuration from
serial port to dedicated configuration socket
(comms option not required)
RATINGS/AGENCY APPROVALS
Conformance: FM, CE, UR, cUR UL File # 67237
Safety: EN61010
EMC: EN61326
PROTECTION
IEC IP66 (NEMA 4X) front panel
IEC IP20 (behind the panel protection)
PHYSICAL DIMENSIONS
Panel Cutout: 1.77” x 3.62” (45mm x 92mm)
Height: 3.78” (96mm
Width: 1.89” (48mm)
Depth: 3.93” (100mm)
Weight: 0.46 lbs (0.21 kg)
Mounting: Plug in panel with fixing strap
OPTIONS/ACCESSORIES
Digital Input 1 (Optional): remote reset
NEW Faster RS-485 serial communication speeds
and user-selectable (Modbus or ASCII) option
NEW 24VDC transmitter power supply option
Choice of Led colors: red/red, red/green,
green/red, green/green
10VDC SSR Drive output
WARRANTY
3 Years
OUTPUTS
Output 1 (limit relay) fixed; outputs 2 and 3
(alarm relay) are user-selectable and
customized based on desired application;
choose from the following output types
Max # of Outputs: 3 for alarm, 24 VDC
transmitter power supply or retransmit of
process value/limit trip setpoint
Limit Relay: SPDT; 240VAC 5A resistive;
Lifetime >100,000 operations at rated
voltage/current
Alarm Relay: Optional SPDT; 240VAC 2A
resistive; Lifetime >500,000 operations at
rated voltage/current
SSR Drive: Optional drive capability: >10 VDC
nominal into 500 ohm minimum
DC Linear: Optional 0-20mA, 4-20mA into 500
ohm max; 0-10V, 1-5V, 2-10V, 0-5V into 500
ohm min; Outputs have 2% over/under drive
applied; Accuracy +-0.25% (mA into 250 ohm
load, V into 2k ohm load); degrading linearity
to +-0.5% for increasing burden to specified
limits
Triac: Optional 0.01 to 1A AC, 20 to 280Vrms,
47-63 Hz (Limit 2)
Transmitter Power Supply: Optional 24 VDC
(Limit 1)
OUTPUT FUNCTIONS
Process Alarm: (reverse or direct)
Modes (Alarm 1 and 2): High/Low, Band,
Deviation, logical OR/AND
Retransmit: Process value or limit setpoint
ELECTRICAL PERFORMANCE
Accuracy: ± 0.1% of input range ±1 LSD (T/C
CJC better than 1 degree C)
Input sample rate: 4 per second, 14 bit
resolution
Impedance: >10M ohm for the thermocouple
and mV ranges, 47k ohm for V ranges and
5 ohm for mA ranges
Sensor Break Detection: <2 seconds (except
zero based DC ranges), limit output opens,
low alarms activate for RTD, mA or V ranges
Controllers
STANDARD FEATURES
4 per second input sample rate
Universal input
NEW
Improved HMI, 4 button operation,
dual 4-digit LED display
NEW Plug-in output modules – install just
the function needed
NEW
Jumperless input configuration
NEW Auto-detection of installed output
modules
NEW Improved PC configuration software
Process alarms
Construction/Enclosure: Rugged ABS Plastic
housing
ENVIRONMENTAL CHARACTERISTICS
Operating Temp:32° to 131°F (0° to 55°C)
Storage Temp: -4°to 176°F (-20° to 80°C)
Humidity: 20% to 95% non-condensing RH
ELECTRICAL
Supply Voltage: 100-240V, 50/60Hz, Optional
20-48VAC 50/60Hz or 22-65VDC
Power Consumption: 5W / 7.5 VA Maximum
DISPLAY:
Type: Dual, Red or Green, 7 segment LED,
4 digit upper and lower displays
Height: 10mm (0.39”) upper display, 8mm
(0.31”) lower display
Annunciators: 5 LED indicators for output
and status
INPUTS
T/C’s: J, T, K, L, N, B, R, S, C; Pt Rh20%
vs. Pt 40% Rh
RTD: 3-wire, PT100
DC Linear (Scalable –1999 to +9999)
Volts: 0-5V, 1-5V, 0-10V, 2-10V
DC milliamps: 0-20mA or 4-20mA
DC millivolts: 0-50mV, 10-50mV
* Specifications are for base models with standard
features only unless otherwise noted. Specifications
subject to change without notice in accordance with
our DBS policy of continuous improvement. All
product and brand names are trademarks of their
respective owners. All rights reserved.
West™ brand and 8700+™ are trademarks of
Danaher Industrial Controls Group. All rights
reserved.
© 2005 DICG Corp.
West Brand 8700+ Data Sheet (7/05)