WARRANTY SELECTING AND INSTALLING POWER SUPPLY 4000 (MODELS 4501, 4504, 4801, 4804) This instrument has been carefully assembled and tested, and is SERIES warranted against faulty workmanship and materials for 12 months from Remove the PCB from its housing, locate the supply voltage selector as the date of purchase. shown in Figure 1, then configure to the desired voltage. During the warranty period any defective instrument will be repaired or replaced at the discretion of the manufacturer This warranty does not The supply should be wired to the terminal connector and fitted to the cover damage or failure resulting from misuse or accident. appropriate position as indicated on the back of unit. Modification, adjustment or any alteration with the internal arrangement of the instrument shall absolve the manufacturer from any liability in respect of the instrument. Any instrument to be repaired should be forwarded to the manufacturer, carriage paid and at the owners risk. Alarm Contact A brief description of the fault should be included. where fitted 12 3 4 LN NC.COM.NO A division of Sifam Instruments Limited Woodland Road, Torquay, Devon TQ2 7AY England Telephone: +44 (0)1803 407693 Fax: +44 (0)1803 407699 OPERATING Email: digitronsales digitron.co.uk Website: www.digitron.co.uk The cable should be clamped into position using the clamping arms provided. It is imperative that all covers are replaced before the power INSTRUCTIONS XG.0430 rev.3 supply is switched on. SAFETY STATEMENT SYMBOLS AND TERMS WARNING The design of this instrument has been checked to EN61010 for Class 11 Where caution is required. Refers the user to the This instrument has different mains wiring details to instruments in use. operator manual for further information. the same series manufactured before January 1 1997. We strongly recommend close attention to the instruction manual This operating instruction contains information and warnings that must be supplied with this instrument. observed to keep the instrument in a safe condition. The instrument should not be switched on if it is damaged and it should not be used This symbol warns the user that high voltages are The instrument is not fitted with a separate a.c. power supply under wet conditions. present close to this symbol. on/off switch and will have a.c. voltages present whenever it is connected. For the correct and safe use of this instrument it is essential that both operating and service personnel follow generally accepted safety These statements identify conditions or practices that WARNING procedures in addition to the safety precautions specified. could be dangerous or fatal to personnel. Whenever it is likely that a safety protection has been impaired the instrument must be made inoperative and be secured against any Alternating current. unintended operation. Qualified maintenance or repair personnel should be informed. Equipment protected throughout by reinforced Safety protection is likely to be impaired, if for example, the instrument insulation. shows visible damage or fails to operate normally. To clean the instrument, disconnect all power sources and then wipe the POWER AND FREQUENCY REQUIREMENTS Figure 1 surface lightly with a clean, soft cloth dampened with water. This instrument operates from line voltages to Installation Category 11, The instrument should preferably be operated in a clean, dry environment local level supplies distributed within the building. N with an ambient temperature of between 0C and +50C. L Supply Voltage: 216-253V a.c. 50/60Hz 109-126V a.c. 50/60Hz WARNING 115v Power Consumption: 230V a.c. 25mA or Before removing the covers for installation, maintenance, or repair, 115V a.c. 45mA 230v the mains supply must be isolated. Fuse Rating: 230V a.c. 50mA (T) UL/CSA This instrument is specified for use in a Pollution Category 11 115V a.c. 50mA (T) UL/CSA Environment which is normally non-conductive with temporary light condensation. This instrument must not be used in more hostile, dusty or wet conditions. Do not use this instrument in a flammable or explosive atmosphere. Hysteresis ControlHYSTERESIS WIRING USING 3 WIRE SENSORS (MODELS 4801, 4804) These should be connected as per the 2 wire sensors, but with terminal All connections should be made using the supplied terminal plugs only, A+B and C+D linked. The hysteresis is factory preset to 2 counts. It should only be adjusted and these slide on to the appropriate terminal pins. Detailed connections by qualified and trained staff, and using a small insulated screwdriver as are given on the rear of the instrument and these drawings should be indicated in Figure 1. used in conjunction with the following instructions. A BC D It should not be carried out while the instrument is powered up. Note: When refitting the plugs, ensue that this is done correctly. Hysteresis may be adjusted by 1 count up to 10 counts. ALARMS (MODELS 4801, 4804) Thermocouple These models have a relay fitted and the alarm point can be adjusted from the front panel. SET POINT ADJUSTMENT Hold in the set point button and adjust the set point potentiometer for the required number of counts as indicated by the display. PANEL FITTING RELAY CONNECTIONS THERMOCOUPLES (MODELS 4501, 4801) The instrument is designed to fit in a panel cut out measuring 92 x 45mm. These instruments have a control relay with a rating of 5A at 250V a.c., and 30V d.c. for resistive loads. The panel should be between 1.5 and 3.5mm thick. Thermocouples should, if possible, be wired directly into the terminal block taking care to observe the correct polarity. The instrument is fitted by sliding into the aperture and pressing firmly Connection is shown on the rear label and should be made using the home into position. supplied terminal block. 4501/4801 +ve These ratings should not be exceeded and an external contactor should REMOVAL -ve be used for high power or 3 phase requirements. Before the instrument can be removed from the panel, the connectors When relay is not energised: must be unplugged from the rear of the panel. 1. Ensure that the power is disconnected. N.C. = Normally Closed 2. COM = Common Remove the front window by gently levering with a small screwdriver If the thermocouple has to be extended, this should only be carried out by on the slot on the lower edge of the window. COM N.O. using extension or compensating cable of a type appropriate to the N.C. N.O. = Normally Open thermocouple being used. 3. Use a screwdriver to release the clamping arms by slightly bending back the lugs as shown below, whilst gently pulling the instrument NB: The rear cover should always be fitted. NOTE: The accuracy may be affected by cable lengths. This is also forward. affected by the type of cable. REMOVAL OF PCB FROM CASE PLATINUM RESISTANCE SENSORS (MODELS 4504, 4804) Follow instructions for removal. Tap instrument (face down) into the palm of the hand. If it does not slide out it can be pushed out by gentle The sensor should be connected to the instrument using a four core pressure from the rear on the terminal pins. Do not use a screwdriver to copper cable as shown below: prise out the PCB. 4504/4804 Pt100 AB C D Standard Pt100 sensor identification colours: YellowACRed BlackBDBlue