Instruction Manual
SPAN TEMPCO:  less than 20 ppm/°C 
STEP RESPONSE:  1 second to 99.9% 
WARMUP:  55 minutes to rated accuracy It is recommended that the unit be continuously 
running to insure its accuracy. 
CONVERSION TECHNIQUE:  Dual-slope 
READRATE and DISPLAY 
UPDATE/Programmable 
INTEGRATION TIME:  3 samples/sec: 100 msec 
13 samples/sec, 60 Hz: 16.7 msec 
12 samples/sec, 50 Hz: 20 msec 
DISPLAY LEDs:  6, 0.54" (13.8mm)h, red, 14-segment 
4, 0.12" x 0.24" (3 x 6mm), red lamp 
SYMBOLS:  –.8.8.8.8.8. or 8.8.8.8.8.8. 
DECIMAL 
POINT POSITION: 
Programmable 
SENSOR EXCITATION 
AC-POWERED:  1.5 to 11Vdc, up to 60 mA max. 
24 Vdc at 25 mA max. 
DC-POWERED:  10Vdc at 120 mA. 
24Vdc at 35 mA. 
Can power up to 4 load cells. 
OUTPUTS 
(STANDARD):  4, isolated open collector; 150 mA at 1 V sink; 30 V open 
BCD OUTPUT:  Tri-state, TTL/CMOS compatible; internal 5 V supply for non-isolated, external 
5 V supply for isolated. 
ANALOG OUTPUT:  0-5 V, 1-5 V, 0-10 V, 0-20 mA, 4-20 mA level; compliance, 12 V at 20 mA; 15-
bit resolution; 0.1% accuracy; programmable zero and span. 
RELAY OUTPUT: 
POWER RATINGS FOR 
RESISTIVE LOADS: 
 DUAL AND 4 RELAY: 
 4 RELAY ONLY: 
Dual Form-C relays or 4 Form-C relay 
Two relays at P6 and P7 
Normally open contact, 7 amp; 30 Vdc or 230 Vac 
Normally closed contact, 7 amp; 30 Vdc or 230 Vac 
Two relays at P18 
Normally open contact 1 amp; 24 Vdc or 30 Vac 
Normally closed contact, 1 amp; 24 Vdc or 30 Vac 
TURNDOWN RATIO 
(MAX OFFSET-MIN 
SPAN): 
1000 with 0.1% or 100 with 0.01% resolution 
COMMUNICATIONS 
INFORMATION 
RS-232 
COMMUNICATIONS: 
RJ11 4-wire connection; complete program setup and message display 
capability; programmable to transmit current display, alarm status, MIN/MAX, 
and status 
BAUD RATES:  300, 600, 1200, 2400, 4800, 9600, 19200 
RS-485 COMMUNICATIONS:  RJ12 6-wire connection; addressable from “000” to “199”. 
BAUD RATES:  300, 1200, 2400, 4800, 9600, 19200 
POWER 
∼ AC UNITS: 
115/230 Vac + or -10%, 50/60 Hz; 12 W max power consumption 
= DC UNITS:  10-32Vdc, 3 to 9 W consumption 
CF 67  71  M1291/N/0403 11279ML-02 Rev. A 










