Nagman ETC 600 User manual

Medium Temperature
DRY BLOCK CALIBRATOR
ETC 600

NAG/IM/ETC 600/01/22 2
BRIEF PROFILE
An ISO 9001-2015 certified Instrumentation company
(since 1972) serving Industries in India & Worldwide thro’ the
Manufacture & Supply of World-Class Calibration
Instruments & Systems like Temperature, Pressure & Signal
Calibrators, Black Body Calibration Sources, Pneumatic &
Hydraulic Hand Pumps, Dead Weight & Comparison Testers,
Calibration Test Benches, etc.

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Dear User,
Thank you for selecting Nagman’s Medium
Temperature Dry Block Calibrator and
becoming a proud owner of this Calibration
Instrument.
We have strived hard to ensure the accuracy
of the contents of this manual. We would
appreciate any suggestions/feedback to
correct any errors noticed and to improve
the quality of contents of this Manual
Specifications are subject to change owing to
continuous development and we reserve
rights to effect Changes / Modifications to
this Manual.
Read the Instructions before starting to use
the Product.
Wishing you for a long association with us.
For any service related issues, please contact
[email protected]
VERSION CONTROL
Version No. Updated on Updated by
V 1.1 11-05-2022 Nagman

NAG/IM/ETC 600/01/22 4
CONTENTS
S.No. Description Page No.
1. Introduction …………………………………………………………..5
2. Specification…………………………………………………………….6
3. Standard Delivery & Optional Accessories ……………8
4. Parts Identification with Picture ……………………………9
5. Connection Diagram ………………………………………….…10
6. Safety Instructions ………………………………………………….11
7. Operating Instruction ………………………………………….….18
8. Troubleshooting / Maintenance……………………………..20

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1. INTRODUCTION
Medium Temperature Calibrator (Dry Block type -
Economy) Model : ETC 600 is an ideal Temperature
Calibrator for Calibration of RTD’s, Thermocouples,
Temperature Switches, Indicators, etc.
The range of the instrument is 50°C to 600°C with an
accuracy of ±0.1% F.S. + 1. The calibrator can be
used to calibrate Temperature Sensor of size up to 30
mm diameter.

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2. SPECIFICATION
Range 50°C to 600°C
Resolution 1°C
Display Digital Display, 3½ digit LED
Accuracy ±0.1% F.S. + 1
Stability ±0.5°C
Temperature Readout °C / °F Selectable
Well Diameter 30 mm
Immersion Depth 110 mm
Heating Time
(Ambient to max.)
18 Minutes approx.
Cooling Time (to 100°C) 60 Minutes approx.
Multihole Thermowell 2 x 1/4" + 1 x 1/2" Probe
Switch Test Facility / Supply Provided / 7 VDC Nominal
Power Supply 115V / 230V AC or Dual
Instrument Dimensions
(L x W x H)
270 x 124 x 240 mm
Instrument Weight 7 Kgs.

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Environment
Operating Temperature Range (Ambient) : 15 – 40°C
Storage Temperature Range : 10 –50°C
Humidity Range : 40 – 75% RH
Protection Class : IP 10
Readout Specifications
Temperature Units : °C / °F
Resolution : 1C
Input Specification
Switch Test Input
Internal Power Supply : 7V DC Nominal
Output Specification
Analog Output (FS) : 10 mV per °C

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3. STANDARD DELIVERY & OPTIONAL ACCESSORIES
Standard Delivery
 Basic Instrument
 Test Leads, Mains Cable & Spare Fuses
 Insertion Tubes (to suit 2 x1/4“ & 1/2“ probes)
 Tool for Insertion Tubes
 Traceable Calibration Certificate
 Carrying Case
 Instruction Manual
Optional Accessories
 Additional Thermowells / Insertion Tubes (to
choose from) :
a) Single hole standard sizes to suit : 1/8”, 1/4”,
3/8”, 1/2”, 3/4” & 3, 4, 5, 6, 7, 8, 10, 12, 13,
15, 17, 19 & 21 mm probes
b) Multi hole (Typical) : (1×6 + 1×8) or (3×4) or
(1×10 + 1×4) mm
 Calibration Certificates are issued in Accordance
with our Scope as granted by NABL per ISO/IEC
17025:2017 Standards
 Dual Voltage Selection

NAG/IM/ETC 600/01/22 9
4. PARTS IDENTIFICATION
1) Heater Block
2) Vent
3) Selector Switch [230V / 115V AC Input Supply]
4) Main Switch [Instrument ON / OFF]
5) Main Fuse [6.3A-230V AC / 12A-115V AC] located in
the power socket, side panel of the calibrator.

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5. CONNECTION DIAGRAM
2
3
1
1. Calibrator
2. Temperature Sensor (UUT)
3. Reference Instrument (for UUT)

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6. SAFETY INSTRUCTIONS
Symbols Used
S.
No. Symbol Description
1.
Read the user manual before operating
the instrument.
2.
Warning- conditions that may pose
hazards to the user.
3. Caution-conditions that may damage the
instrument.
4.
Special Information
5.
Hot surface- areas which are at high
temperature
6.
Electric shock- condition that may pose
shock to the user.

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 This calibrator is designed for interior use only.
 Inspect the instrument for damage before each use.
 Do not use the instrument if it appears damaged or
operates abnormally.
 If the instrument is used in a manner not in
accordance with the equipment design, the
operation of the instrument may get damaged.
 Do not place the instrument under a cabinet or other
structure. Leave enough clearance to allow for safe
and easy insertion and removal of probes.
 Do not drop the probe stems into the well. This type
of action can cause a shock to the Sensor.
 Do not use this instrument for any application other
than the calibration work. Any other use of the
instrument may cause unknown hazards to the user.
 Do not operate near flammable materials.
 Calibration Equipment should only be used by
Trained Personnel.
 Completely unattended operation is not
recommended.

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 This instrument and the thermometer probes are
sensitive instrument that can be damaged. Always
handle those devices with care.
 Do not leave the inserts in the instrument for
prolonged periods. It may cause damage due to high
operating temperature of the instrument.
 Do not operate this instrument in an excessively wet,
oily, dusty, or dirty environment, or in explosive
zones.

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 Check that earth connection for the instrument is
available and then plug the Power cord
 Always operate this instrument at room temperature
between 15˚C and 40˚C. Allow sufficient air
circulation for the instrument by leaving at least 20
cm of clearance around the instrument.
 Do not turn off the instrument at temperature higher
than 50˚C. This would create a hazardous situation.
Select the set-point to room temperature and allow
the Instrument to cool before it turning OFF.
 Do not use the instrument if the cooling fan located
at the bottom of the Instrument is out of order.
 Ensure a free supply of air to the fan grill located at
the bottom of the Instrument.
STORING AND TRANSPORTING THE CALIBRATOR :
The following guidelines should always be observed
when storing and transporting the calibrator. This
will ensure that the calibrator remain in good
working order for longer period.

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Storing:
 Switch OFF the calibrator using the power
control switch.
 Turning OFF the calibrator during the calibration
process, will not damage the instrument.
 If you intend to store the calibrator in the
Packing Box after use, you must ensure that the
instrument has cooled to a temperature
(maximum at 10˚C / 50˚F – very close to ambient
temperature) above ambient before placing it in
the Packing Box
Transporting:
 The Inserts must be removed to avoid damage to
the instrument if the calibrator is to be
transported to long distances

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 Do not touch the well access surface of the
instrument.
 Do not touch the well or the Insert while the
calibrator is heating up, they may be very hot.
 Do not touch the tip of the sensor (as well as the
portion immersed in the well) when it is removed
from the Insert / well it may be very hot.
 Do not touch the handle of the calibrator during
use – it may be
hot.

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 This instrument must be plugged into a 230V AC,
50Hz (Optional 115V AC, 60Hz), electric outlet only.
 The power cord of the instrument is equipped with a
three-pin grounding plug for protection against
electrical shock hazards. It must be plugged directly
into a properly grounded three-pin socket. The
receptacle must be installed in accordance with local
codes and ordinances. Do not use an extension cord
or adapter plug.
 If supplied with user accessible fuses, always replace
the fuse with one of the same rating, voltage, and
type.
 Always replace the power cord with an approved
cord of the correct rating and type.
 Turn off the Instrument immediately, during main
power fluctuation. Power bumps from brown-outs
could damage the instrument. Wait until the power
has stabilized.
 Do not remove the fuse box from the socket until the
power cord has been disconnected.
 If the fuse blows immediately after you have
replaced them, the calibrator should be returned to
the manufacturer for service.

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7. OPERATING INSTRUCTION
 Connect the power cable to the Dry Block Calibrator.
 Switch ON the instrument
 Set the required temperature in the PID Controller as
follows.
 Press “” (F1) key to increase the set
temperature.
 Press “” (F2) key to decrease the set
temperature.
 Press “◄” (F3) key to select the range of set
temperature.
 Insert the sensors (UUT), which are going to be
calibrated into the corresponding hole of the inserts.
 Allow the bath to stabilize at the set temperature.
 Connect test probe (UUT) to the indicator and note
down the readings of test probe and same steps can
be followed for other set of calibration points.
 After calibration is over, set the bath temperature to
ambient and allow it to cool.
 After reaching the ambient temperature, switch off
the power supply.

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Switch Test
 Connect the output of thermostat switch to the switch
test sockets using the test probes supplied.
 If the thermostat switch is “Normally Closed”, the LED
indication will glow and will stop glowing when the
switch changes its state.
 If the thermostat switch is “Normally Open”, the LED will
not glow initially and will glow when the switch changes
its state.

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8. TROUBLESHOOTING / MAINTENANCE
Replace the main fuse by following the below
instructions:
 Identify the main fuse in the fuse box in the socket.
 Open the lid of the fuse box using a screwdriver.
 Replace the fuse with the main fuse rating 6.3A (12A
for 115V).
Replace the Heater fuse by following the below
instructions:
 Identify the heater fuse in the corresponding fuse
holders marked in the enclosure of the equipment.
 Open the fuse holder in anti-clockwise direction.
 Replace the fuse with the heater fuse rating as 6.3A
(12A for 115V)