Chore-Time Chore-Tronics 3 Control - Technical Specifications

Technical Specifications
Technical Specifications Chore-Tronics® 3 Control
140
MT2398C
Ambient Operating Temperature Range... 14°F (-10°C) to 122°F (50°C)
Set Temperature Range…. 32°F (4.4°C) to 120°F (48.9°C)
Timer Ranges….

Timer 1 & Timer 2: 0 to 2000 seconds on/0 to 2000 seconds off.
Min Vent Timer: 30-2000 or 0 seconds on/60-2000 or 0 seconds off.
Stir On Time: 0-Min Vent off time.
Supply Voltage………85-264 Vac 50-60hz
Output Relays
Contacts……..SPST Normally Open Contacts
Voltage………250 Vac max
Load………….1 HP@ 240 
.5 HP @ 120 Vac
1000 W Incandescent Light Load @ 120 Vac
External Power Output
Voltage………24 Vdc
+
/- 1.5V
Temperature Sensors
NTC Thermister range: -30°C to 50°C/-22°F to 122°F; 10 Kilo ohms @ 77°F
+
/- .7°F
Sensor Wire / PC Wire…….20 gauge single T
wisted Pair Wire, 1 twist every 2
inches, unshielded wire. Use of Chore-Time part number 42208 strongly
recommended.
Potentiometer (2-wire)…………… 0-10KW 10-turns (Natural Ventilation Only)
Static Pressure Sensor (3-wire)…………….0-.4 inches w.c. range
0-10v (with resistor installed)
Relative Humidity Sensor (3-wire)……..0-100% RH
range
0-5 V signal
Pulsed Water Meter (2-wire)…….Closed co
ntact trigger, No voltage Input
Low Water Pressure Switch…….Low Pr
essure Reverse-Action Switch.
Settings (on/off) 10/5 PSIG
FNET Data Voltage Range (C-Central)…….
+
/-5 V
Alarm Relay
Voltage…..30 Vac
50 Vdc
Current.... .5 A @ 30 Vac
.5 A @ 30 Vdc