unix Corporation ED-90X User manual

unix
Corporation
ED-90X
Instrument
Manual
Ultra Cool Dry Block
Temperature Calibrator
Temperature Range: -90 °C to +25°C

Table of Contents
1.Preface.....................................................................................1
2.Technical Specification............................................................. 2
3.Operating Principle.................................................................. 3
4.Safety Measures.................................................................... .. 5
5.Warranty Certificate..................................................................6
6.Calibration Report......................................................................9

Preface
Congratulation on purchase of “Tunix” make Ultra Cool Dry block temperature
Calibrator Model : ED-90X. This instruments is one of the best available in its
class.
We have taken enough care in designing and manufacturing to give you trouble
free performance for longer period. Before starting the instrument, we suggest you
to go through the instruction manual.
Please check for following Standard accessories
1) Product is not physically damaged.
2) Operating Manual With Warranty certificate.
3) 1 Insert & 1 Insert Pull out tool.
4) Power Chord.
5) Carrying Bag / Carrying Box.
On Arrivel

Temperature Range : -90 ˚C to 25 ˚C at 25 ˚C
Resolution : 0.1 °C
Control accuracy : ± 0.1 ˚C
Thermal Instability : ± 0.020 ˚C
Thermal Non uniformity (Radial) : ± 0.070 ˚C
Stabilization Time/ settling time : 15 minutes after set point is achieved
Time to reach : -90 ˚C (90 Minutes) from @25 ˚C ambient temperature
Power supply : 100-240 VAC @50-60 Hz.
Current : 0.3 A
Power Consumption : single phase :120 Watt maximum
Sound : Less than 30 dB
Enclosure : Metal(MS Powder coated)
Display : Color touchscreen Display
Weight : 19.5 Kg
Technical Specification

SMPS
PID Controller
Polarity Switch
Control
Output
SSR
Operating Principle
For temperature calibration you require a stable known temperature source. The
certainty of the calibration depends on
1) Stability of the source temperature.
2) Uniformity to which the stable temperature is known.
Designed diagram of ED-90X is given below.
As Shown in above diagram, Aluminum block is heated & cooled by Thermoelectric coolers in
such a way that a cavity in block has radial as well as axial homogeneous temperature. This
temperature is sensed by highly accurate and stable sensor and block temperature is
controlled by a HMI controller.
230 AC
Temperature
Input
HMI

Operating Principle
IMPORTANT INSTRUCTION FOR OPTIMUM PERFORMANCE
1) Use 6 amp glass fuse as supplied with instrument.
2) 3 Pin Plug used should have 6 amp capacity.
3) Cooling fan on the buttom are on .This is required to cool the electronics.
Ensure the air passage is not blocked
Product Dimensions(LXBXH)
Insert Dimension

Safety Measures
1) A 6 amp Glass fuse is used in the supply line to prevent any problem due to
failure of Thermoelectric module. In case of fuse being fused to frequently kindly
consult factory.
2) In the event of SSR failure temperature gets run away above set value. If it
cross the set point by more than 50°C. Switch off the power immediately and
consult factory.
3) Do not temper wiring as it may be safety hazard.

Trouble Shooting
1) Calibrator is not reaching set value.
Check mains for full voltage.
Check resistance of heater by opening the side cover as per wiring diagram.
It should be 75 ohm. It not fount in range consult our factory.
2) Calibrator temperature is running over.
Check terminal 1 &2 of SSR for getting short for ever. If it is short replace it.
Check for correct polarity in your mains plug. Phase should go thru SSR as
per design. If phase is not routed thrue SSR It may not control the temperature.
3) Calibrator is not not getting on.
Check mains.
Check fuse.
Check tightness of all terminals on controller & main terminal strip.
4) Bath temperature not getting stable.
Check fan at the bottom cover it should be running.
Need turning of controller.

Warrenty Certificate
This is certify that, Ultra Cool Dry Block Temperature Calibrator having Sr. No.---------
----------- Date-------- is properly Tested for workmanship. We Certify our Calibrator
for satisfactory performance for the period of one year against any manufacturing
defect.
Signature

Calibration Certificate
Certificate No. :
Date :
Model No. :
Temperature Range :
Reading On Calibrator Reading on Master
Calibrated By Authorized By

Check-list
Has all factory setting parameters of Instruments
locked? ..........(Yes/No)
Signature
Date
Is Instrument is working properly ........(Yes/No)
Is Carry bag is available? .........(Yes/No)
Is Insert puller is available? .........(Yes/No)
Is power chord is available? .........(Yes/No)
Is Insert is available? .........(Yes/No)