OPERATING INSTRUCTIONS
Contents
1. 99 minutes Example If this parameter is set at 2 mins the relay will cut off at the set temperature but will not restart for a minimum of 2 mins even if the differential is achieved earlier 5 Alarm acknowledgement To acknowledge the alarm press A key Specifications subject to change as development is a continuous process Selec Controls Pvt Ltd India Formerly Selectron Process Controls Pvt Ltd Tel 91 22 28476443 Fax 91 22 28471733 Website www selec com E mail sales selec com Operating 1005 CH403 OP161 V03B Page 2 of 2 _2. shall be done strictly according to the terminal layout with shortest connections Confirm that all connections are correct 3 To eliminate electromagnetic interference use of short wire with adequate ratings and twists of the same in equal size shall be made 4 Cable used for connection to power source must have a cross section of 1mm or greater These wires shall have insulation capacity made of at least 1 5KV INSTALLATION GUIDELINES 1 A CAUTION This equipment being built in type normally becomes a part of main control panel and in such case the terminals do not remain accessible to the end user after installation and internal wiring Conductors must not come in contact with the internal circuitry of the equipment or else it may lead to a safety hazard that may in turn endanger life or cause electrical shock to the operator Circuit breaker or mains switch must be installed between power source and supply terminals to facilitate power ON or OFF function However this switch or breaker must be installed in a convenient position normally accessible to the operator CAUTION 1 The equipment shall not be installed in environmental conditions other than those mentioned in this manual 2 Fuse Protection 4 The equipment does not have a built in type fuse Installation of external fuse of rating 275VAC 1Amp for electrical circuitry is highly recommended Thermal dissipation of
3. M of relay ve of SSR 3 NC of relay 4 ve of alarm output 5 ve of alarm output 10 N Neutral 12 L Live CH403 2 SENSOR N L 1 2 s 4 s 6 7 8 9 hrol1a r2 o Eo COM NO TERMINAL TERMINAL DESCRIPTION 4 NO of relay 2 COM of relay 7 amp 8 Sensor input 10 N Neutral 12 L Live CH403 3 NO COM NC NO2 OM2 SENSOR TERMINAL TERMINAL DESCRIPTION 7 amp 8 Sensor input 4 ve of alarm output NO2 5 ve of alarm output COM2 10 N Neutral 12 L Live TYPICAL CONNECTIONS FOR LOADS 1 For load current less than 0 5A Snubber 2 For bigger loads use interposing relay contactor NOTE Use snubber as shown above to increase life of internal relay of temperature controller SAFETY SUMMARY All safety related codifications symbols and instructions that appear in this operating manual or on the equipment must be strictly followed to ensure the safety of the operating personnel as well as the instrument If the equipment is not handled in a manner specified by the manufacturer it might impair the protection provided by the equipment CAUTION Read complete instructions prior to installation and operation of the unit A CAUTION Risk of electric shock WIRING GUIDELINES A CAUTION 1 To prevent the risk of electric shock power supply to the equipment must be kept OFF while doing the wiring arrangement Use lugged terminals to meet M3 screws 2 Wiring
4. OPERATING INSTRUCTIONS CH403 36 x 72 SPECIFICATIONS SETPOINT LIMITS Product Resolution R roduc CCIF ange 50 to 100 C 50 to 210 F 19 0 to 99 0 C F CH403 DISPLAY 3 digits 0 4 Bright Red LED s SENSOR TYPE NTC probe TSP04 CONTROL ACTION ON OFF with hysteresis programmable from 0 1 to 9 9 C F DISPLAY OFFSET ADJUSTMENT 19 9 to 20 0 C F RESTART TIME DELAY Adjustable from 00 to 99 minutes ACCURACY 1 full scale SETTINGS Via keys on front panel RELAY ACTION a Heat mode SENSOR BREAK PP indicated on display relay off ALARM INDICATIONS a High Alarm display alternates between HA PV value b Low Alarm display alternates between LA PV value OUTPUT For main set point SPST 10A 230 VAC SSR drive available on request 20A relay models available For Alarm 12VDC 10mA 5A relay models available on request DEFROST TIME Programmable from 00 to 99 min b Cool mode DEFROST FREQUENCY Programmable from 00 to 99 hr min sec POWER SUPPLY 85 to 270 VAC DC 50 60 Hz 24VAC DC models Available on request OPERATING TEMP 0 50 C HUMIDITY 95 RH HOUSING Flame retardant engineering plastic WEIGHT 110 gms TERMINAL CONNECTIONS CH403 1 NO COM NC ALARM SENSOR o 4 4 N L FOR SSR TERMINAL TERMINAL DESCRIPTION 7 amp 8 Sensor input 1 NO of relay ve of SSR 2 CO
5. equipment is met through ventilation holes provided on chassis of equipment Such ventilation holes shall not be obstructed else it can lead to a safety hazard The output terminals shall be strictly loaded to the manufacturer specified values range MAINTENANCE 1 2 The equipment should be cleaned regularly to avoid blockage of ventilating parts Please clean the equipment with a clean soft cloth Do not use Isopropyl alcohol or any other cleaning agent MECHANICAL INSTALLATION 1 shown in mm 33 l 2 For installing the controller Prepare the panel cutout with proper dimensions as Panel Cutout k 75 gt 1 gt 74 59 k 71 gt Push the controllgi into the panel cutout Secure the controller in its place by pushing the clamp on the rear side The screws of the clamp must be in the farthest forward slot For proper sealing tighten the screws evenly with required torque A CAUTION The equipment in its installed state must not come in close proximity to any heating sources caustic vapors oils steam or other unwanted process by products EMC Guidelines al 2 Operating 1005 CH403 OP161 V03B Use proper input power cables with shortest connections and twisted type Layout of connecting cables shall be away from any internal EMI source Page 1 of 2 _ CONFIGURATION SCHEME parameter setting To enter configuration Press amp amp Y for 3 seconds 1 To L
6. etting 1 11 To select Defrost Frequency unit NOTE This parameter will be prompted only if Defrost time DFT gt 0 Display dF 1 for 1 second Factory setting Hours DEFROST FREQUENCY UNIT Hours Press 0 4 9 Press Minutes Seconds 12 To select Audible Alarm Factory setting Mute NOTE Not prompted for 20A relay models Displa H for 1 second Y AL Audible Alarm Press 0o49 Enable 13 To select Units Factory setting C Celsius Fahrenheit 14 To select Sensor Break Display for 1 second Sensor n Break 4 min ON G a 9 Off first 15 Press A to select Reset all At display 5 reset all to Factory setting value Note Reset all function to be used prior to changing input to realign related parameters Display for 1 second n e RESET ALL Press 0 il Press 0 8 Press 0 3 Press 0 Press 0 After configuration setting Press Q amp for 3 secs to exit programming mode NOTE No keys pressed in programming mode allows to quit automatically from programming after 1 min Factory setting 0 Relay OFF 10 min OFF No reset No reset No reset No reset No reset All reset Programming Set Point A To view set point Press key B To increase decrease set point Press 4 9 Continuous operation of above makes update speed faster in 3 stages after 7 seconds Range From user programmed Low alarm LA to High alarm HA Resolution 1 0 1 prog
7. ock setpoint Factory setting 0 Display Cp for 1 second SETPOINT Unlock Press G 4A 9 2 To select Resolution Factory setting 1 Display E S RESOLUTION Lock r r co for 1 second JL Press 0 4 9 uel 3 To select Control mode Factory setting Cool Display Cf E for 1 second MODE Cool mode Press 0 4 9 4 To select High Alarm Factory setting 100 C Display for 1 second HIGH o SP to 100 C ALARM SP to 99 C for 0 1resolution Heat mode ay ye 73 Try jer Press Y to change value 5 To select Low Alarm Factory setting 50 C for 1 second Display _ A 50 C to SP 19 C to SP W ALARM for 0 1resolution Press A 9 to change value Display for 1 second Nn Press to change value 7 To select Display Offset Factory setting 0 0 Display for 1 second WW Press 9 to change value HYSTERESIS 0 1 to 9 9 DISPLAY OFFSET 19 9 to 20 0 8 To select Restart time Factory setting 00 delay n 3 Display for 1 second cae GG 00to 99 min Press amp 9 to change value 9 To select Defrost time Factory setting 00min Display for 1 second an ME 00 to 99 min Press to change value 10 To select Defrost Frequency NOTE This parameter will be prompted only if Defrost time DFT gt 0 Display for 1 second PUEA 00 to 99 units FREQUENCY Press A to change value Factory s
8. rammable Default 0 C USER GUIDE 1 ON OFF control action for cooler The relay is OFF up to a temperature equivalent to SETPOINT HYST and ON above this temperature As the temperature of the system drops the relay is switched OFF at SETPOINT Hysteresis The difference between the temperature at which relay switches ON and at which relay switches OFF is the hysteresis or dead band t Temp p Hysteresis set point x ae 1 E dl rot Heater f ee Bie mode 1 1 1 i 1 T 1 i F Cooler con OF E i i ON Time 2 Display Offset adjustment This function is used to adjust the display value in cases where it is necessary for display value to agree with another recorder or indicator or when the sensor cannot be mounted in correct location 3 Defrost mode The unit has two modes of defrost Auto and Manual The Auto mode can be set by programming required defrost frequency between 0 and 99 Hr Min Sec The defrost frequency excludes the defrost time To enable Manual defrost press key Y continuously for 4 sec Defrost is valid only for cool mode During defrost relay remains OFF for a period Programmed defrost time Defrost once enabled can be disabled only at power ON Defrost is disabled if Defrost frequency 0 or Defrost time 0 4 Restart time delay This parameter is used to protect the compressor from restarting in a short period of time and can be set between 0 to
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