Nagman MTC Series User manual
UNIVERSAL DRY BLOCK
HIGH TEMPERATURE CALIBRATOR
MTC 1200
NAG/IM/MTC1200/01/22 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.
NAG/IM/MTC1200/01/22 3
Dear User,
Thank you for selecting Nagman’s Universal
Dry Block High Temperature 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
VERSION CONTROL
Version No. Updated on Updated by
V 1.1 01.09.2022 Nagman
NAG/IM/MTC1200/01/22 4
CONTENTS
S.No. Description Page No.
1. Introduction …………………………………………………………..5
2. Specification…………………………………………………………….6
3. Standard Delivery & Optional Accessories ……………9
4. Parts Identification with Picture ……………………………10
5. Connection Diagram ………………………………………….…17
6. Safety Instructions ………………………………………………….18
7. Operating Instruction ………………………………………….….24
8. Troubleshooting / Maintenance……………………………..28
NAG/IM/MTC1200/01/22 5
1. INTRODUCTION
Nagman’s Universal Dry Block High Temperature
Calibrator is used for calibrating RTD’s,
Thermocouples, Temperature Switches, Temperature
Indicators etc.
The front panel continuously shows the current
Thermowell block temperature. Desired temperature
is set by using keypad which gives the corresponding
set value in the display.
Proper use of the instrument will provide accurate
calibration of temperature sensors.
Heater Block
The “Block” is made up of Inconel and provides a
relatively constant and accurate temperature
environment.
A thermo well is provided that may be used for
sensors of that size or may be sleeved down with
various sized multi-hole probe sleeves.
Heaters embedded in the block assembly provide
uniform heat to the sensor. A high temperature
platinum RTD is embedded at the base of the block
assembly to sense and control the temperature of
the block.
The entire assembly is suspended in an air cooled
chamber thermally isolated from the chassis and
electronics.
NAG/IM/MTC1200/01/22 6
2. SPECIFICATION
Range 300°C to 1200°C
Resolution 1°C
Accuracy ±2°C
Stability ±0.5°C
Stabilisation Time 15 Minutes
Temperature Readout °C / °F Selectable
Well Diameter 26 mm
Immersion Depth 105 mm
Dry Block Material Inconel
Heating Time
(Ambient to max.)
60 Minutes approx.
Cooling Time (to min.) 45 Minutes approx. (with Forced Air Cooling)
Switch Test facility Provided
Thermowell Dia 8 mm
Housing / Mounting Bench-top
Power Supply 230V AC, 50 Hz
Instrument
Dimensions
(L x D x H)
160 x 365 x 450 mm
Instrument Weight
(approx.)
15 Kg.
Measurement
Capability
Thermocouples ISA Types J, K, R, S, N, B, T
RTD Pt100 IEC Std.
mA 0 to 25 mA
mV 0 to 100 / 1000 mV
Volt 0 to 10 V
Resistance 0 to 500Ω / 3.5 KΩ
NAG/IM/MTC1200/01/22 7
MEASUREMENT : RANGE, RESOLUTION & ACCURACY
Type Range Resolution Accuracy
mV (Low) 0 to 100 0.01 ±0.05% F.S.
mV (High) 0 to 1000 0.1 ±0.05% F.S.
Volts 0 to 10 0.001 ±0.05% F.S.
mA 0 to 25 0.001 ±0.05% F.S.
Ohms 0 to 500 0.01 ±0.05% F.S.
KOhms 0 to 3.5 0.0001 ±0.05% F.S.
RTD Pt100 -100 to 800 0.1 ±0.05% F.S.
Type Range Resolution Accuracy
TC Type J -100 to 1200 0.1 ±0.1% F.S.
TC Type K -60 to 1260 0.1 ±0.1% F.S.
TC Type R 150 to 1700 0.1 ±0.1% F.S.
TC Type S 170 to 1700 0.1 ±0.1% F.S.
TC Type N 0 to 1300 0.1 ±0.1% F.S.
TC Type B 920 to 1820 0.1 ±0.1% F.S.
TC Type T 0 to 400 0.1 ±0.1% F.S.
NAG/IM/MTC1200/01/22 8
ENVIRONMENTAL CONDITIONS
This instrument should not be operated in an excessively
dusty & dirty environment and explosive zones.
The instrument operates safely under the following
conditions :
Operating temperature : 23 ±2˚C
Storage Temperature : -20˚C to 40˚C.
Ambient relative humidity : 15 – 50%
Mains voltage within ±10% of nominal
Minimum vibrations in the calibration environment.
NAG/IM/MTC1200/01/22 9
3. STANDARD DELIVERY & OPTIONAL ACCESSORIES
Standard Delivery
Basic Instrument
Test Leads
Mains Cable
Insertion Tubes (to suit 1/4“ & 1/2“ probes)
Tool for Insertion Tubes
Spare Fuses
Computer Interface
“MTCCal” Calibration Software
Traceable Calibration Certificate
Instruction Manual
Carrying Case
Optional Accessories
Additional Thermowells / Insertion Tubes (to choose
from) :
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
Multihole (Typical) : (1x6 + 1x8) or (3x6) or (1x10 +
1x4) mm
Power Supply 110V AC, 60 Hz
Calibration Certificates are issued in Accordance with
our Scope as granted by NABL per ISO/IEC
17025:2017 Standards
NAG/IM/MTC1200/01/22 10
4. PARTS IDENTIFICATION
Heater
Block
Keypad &
Display
Front Panel
PC Interface
Connector
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