Isotech 4936, 4934 Specifications

-25 to 250°C

http://www.isotech.co.uk/industrial/

ACROSS RANGE

g

Multi Function: Six Modes including Dry Block and

Liquid Bath

g

65mm Volume: Ideal Liquid Bath

g

Calibrate entire measurement loop - using a heat

source rather than an electrical simulator, a test
instrument and sensor can be calibrated as a system

The Hyperion and Drago have large calibration volumes,
65mm x 160mm deep, which makes them ideal to use as
portable liquid baths. Stirred liquid baths are suitable for
temperature sensors of all types, sizes and shapes. Liquid
Baths can provide smaller calibration uncertainties than dry
blocks and when used with suitable reference thermometers,
accuracies of up to 0.005°C can be achieved.

These models are part of the award winning Isocal-6 family
and with a reference probe can be used with different
accessories for Dry Block, Infrared, Surface Calibration and
even with ITS-90 Fixed Point Cells for uncertainties to

0.001°C. In Dry Block Mode, the large 65mm diameter
block allows for the calibration of either larger probes or for
calibrating many sensors simultaneously.

As a Liquid bath the sensors can be placed directly into the
stirred liquid thus avoiding the need for specially drilled
blocks. If the liquid is directly in the block then the controller
only model, or Basic (B) model, can be selected. However,
instead of putting liquids directly in the block liquid
containers can be used to facilitate rapid change of fluids.
For greater accuracy, or when using a liquid container, Dry
Block Insert, Blackbody Target or the Surface Sensor Kit a
separate reference thermometer should be used to
compensate for the varying offset between the controller
and the accessory temperature.

An ideal arrangement would be to include the handheld
Isotech TTI-10 or the bench top Isotech milliK Precision
Thermometer and Model 935-14-16 Semi Standard
Platinum Resistance Thermometer.

ISOCAL - 6 Range

Hyperion • Drago

Alternatively the SITE or ADVANCED model can be
selected; the SITE includes a temperature indicator for a
reference probe. The ADVANCED also includes inputs for
test thermometers, automatic temperature cycling, logging
and additional sophisticated features.

All models include I-Cal Easy LOG software and the
ADVANCED models additionally include software to
manage logged data and configure the unit, see page 14
for more details.

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CALIBRATION SOLUTIONS

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BASICSITEADVANCED

PARAMETER Model

Hyperion 4936 Drago 4934

Temperature Range -25°C to 140°C

1

30°C to 250°C

2

ADVANCED Range

Stability: Dry Block / Liquid Bath ±0.005°C 50°C ±0.005°C / 150°C ±0.03°C
Display Resolution 0.001°C over whole range 0.001°C over whole range
Accuracy: RTD Input Channels ±0.05°C ±0.005% RDG
Accuracy: Thermocouple Input Channels E,J,K,N: ±0.2°C @ 660°C R: ±0.6°C S: ±0.7°C @ 660°C T ±0.2°C @ 150°C
CJC Accuracy ±0.35°C

BASIC / SITE Range

Stability ±0.03°C ±0.03°C
Display Resolution 0.01°C from -19.99 to 99.99°C then 0.1C: 0.01°C Over PC Interface

COMMON Specifications

Stability Blackbody ±0.3°C Surface Sensor ±0.5°C ITS-90 Cells ±0.0005°C

Display Accuracy

3

0.15°C 0.15°C

Uniformity - Radial, Liquid Bath Mode <0.009°C <0.007°C

Uniformity - Axial, Liquid Bath Mode

<0.011°C <0.013°C

(40mm)

Uniformity - Radial, Dry Block Mode

<0.008°C <0.008°C

(Between Wells)

Uniformity - Axial, Dry Block Mode

<0.040°C <0.040°C

(40mm)
Heating Time -20°C to 140°C: 40 Mins 30°C to 250°C: 40 Mins
Cooling Time 140°C to 20°C: 90 Mins

250°C to 30°C: 90 Mins

20°C to -25°C: 80 Mins

Insert Size 65 x 160mm
Insert Types Standard 8 x 8mm + 2 x 4.5mm, Undrilled or Custom Drilled
Power 115 or 230Vac 50/60Hz 200 Watts 115 or 230Vac 50/60Hz 1000 Watts
Dimensions 384H (including handle) x 212W x 312D mm
Weight 12kg 8kg

(1) In ambient of 20°C: Minimum Temperature is 45°C Below Ambient, Absolute Minimum -35°C
(2) In ambient of 20°C
(3) Dry Block Mode only: Comparing 4.5mm Well to Display Value.

ADVANCED SITE BASIC

Digital Display of Set and
Nominal Block Temperature

Yes Yes Yes

PC Interface Ethernet + USB Host Serial Serial
Test Thermostats Yes - Two Inputs Yes - Single Input No
Independent Temperature

Indicator for Reference Probe

Yes Yes No

Up to 3: Two universal

Additional Inputs for Units
Under Test

inputs for PRT,

Thermocouple or Process

inputs and a further

No No

Thermocouple input

Automatic Temperature
Cycling

Yes No No

Data Logging Yes - Export to USB No No

Offset Elimination

Choose English, French,
Italian or Spanish Language

Yes - block can follow

reference input

No No

Yes - on full colour display No No

In Built Web Server Yes No No

Yes - Suitable for life

Tamper Proof Data

science, automotive and

No No

aerospace applications

CALIBRATION SOLUTIONS

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