Specifications

CTR-40

CTR-80

HTR 400

LTR -25/140

LTR-40/140

LTR-90

Temperature Range

–40°C to 150°C

-80 to 100°C

(–112°F to 212°F)

25°C above ambient to

400°C

–25°C to 140°C

–40°C to 140°C

–95°C to 140°C

Ambient Operating Range

5–40°C (41–104°F)

15 to 25°C (59 to 77°F)

5°C to 50°C

5°C to 50°C

5°C to 50°C

5°C to 50°C

Set-Point Accuracy

±0.5°C

±0.006°C at –80°C

(ethanol)

±0.010°C at 0°C (ethanol)

±0.010°C at 100°C (oil)

0.2°C to 300°C

0.3°C to 400°C

0.2°C

0.2°C

0.2°C

Temperature Stability

±0.005°C at –40°C (ethanol)

±0.005°C at 25°C (water)

±0.007°C at 150°C (5012

oil)

±0.006°C at –80°C

(ethanol)

±0.010°C at 0°C (ethanol)

±0.010°C at 100°C (oil)

0.02°C to 300°C

0.05°C to 400°C

0.02°C

0.02°C

0.02°C

Temperature Uniformity

±0.006°C at –40°C (ethanol)

±0.005°C at 25°C (water)

±0.010°C at 150°C (5012

oil)

±0.008°C at –80°C

(ethanol)

±0.012°C at 0°C (ethanol)

±0.012°C at 100°C (oil)

Transfer Calibration

Accuracy*

IRTD Standard to

Thermocouples

50°C to 150°C: ±0.1°C

150°C to 250°C: ±0.2°C

250°C to 350°C: ±0.3°C

350°C to 400°C: ±0.4°C

–25°C to 80°C: ±0.1°C

80°C to 130°C: ±0.15°C

130°C to 140°C: ±0.18°C

–40°C to –25°C: ±0.15°C

–25°C to 80°C: ±0.1°C

80°C to 130°C: ±0.15°C

130°C to 140°C: ±0.18°C

–40°C to –25°C: ±0.15°C

–25°C to 80°C: ±0.1°C

80°C to 130°C: ±0.15°C

Typical Heat-Up Time

60 minutes, from 25°C to

150°C (5012 oil@115V)

Ambient to 90°C:

5 minutes

90°C to 125°C:

3 minutes

350°C: 25 minutes

Ambient to 80°C: 6 minutes

Ambient to 140°C: 14 minutes

Ambient to 80°C: 6 minutes

Ambient to 140°C: 14

minutes

Ambient to 80°C: 6

minutes

Ambient to 140°C: 14

minutes

Typical Cool-Down Time

110 minutes, from 25°C to

–40°C (ethanol)

25 to -80°C 120 min

Access Opening

172mm x 94mm (6.8”

x 3.7” )

86 mm x 114 mm (3.25”

x 4.5”) w/positions for

(2) IRTDs and (3) 11 mm

(7/16”) dia. x 203 mm (8”)

deep calibration wells

Well Configuration

Reference wells (2): 6.7 mm

diameter x 127 mm deep

Calibration wells (8): 9 mm

diameter x 155 mm) deep

Reference wells (2): 6.7 mm

diameter x 155 mm deep

Calibration wells (6): 9 mm

diameter x 155 mm) deep

Reference wells (2): 6.7 mm

diameter x 155 mm deep

Calibration wells (6): 9 mm

diameter x 155 mm) deep

Reference wells (2): 6.7

mm diameter x 155 mm

deep

Calibration wells (6): 9 mm

diameter x 155 mm) deep

Display

Digital with push-button

entry

LED w/0.01 (°C or °F

resolution)

LED w/0.01°C resolution

LED w/0.01°C resolution

LED w/0.01°C resolution

LED w/0.01°C resolution

Computer Interface

RS-232

RS232

RS232

RS232

RS232

RS232

Dimensions

305 mm x 622 mm x 584

mm (12” x 24.5” x 23”)

762 x 305 x 610 mm (30”

H x 12”W x 24” D)

343 mm x 198 mm x 317.5

mm

343 mm x 198 mm x 317.5 mm

343 mm x 198 mm x 317.5

mm

343 mm x 198 mm x

317.5 mm

Weight

35.4 kg (78 lb)

57 kg (125 lbs)

8.2 kg

13.6 kg

13.6 kg

13.6 kg

Power

115 VAC (±10%), 60 Hz,

15 amps

[230 VAC (±10%), 50 Hz, 8

amps optional]

115 VAC 60 Hz, 16A or

230 VAC 50 Hz, 8A 1700

Watts

115 VAC 60 Hz, 6 A or

230 VAC

50 Hz, 3 A 700 watts

115 VAC 60 Hz, 3 A or 230 VAC

50 Hz, 1.5 A 350 watts

115 VAC 60 Hz, 3 A or 230

VAC

50 Hz, 1.5 A 350 watts

115 VAC 60 Hz, 3 A or

230 VAC

50 Hz, 1.5 A 350 watts

Fault Protection

Over temp limits(user

settable), low voltage

cutout, automatic

refrigeration turn off,

electrical fuse

Sensor burnout protection,

over temperature thermal

cutout, electrical fuse

Sensor burnout protection,

over temperature thermal

cutout, electrical fuse

Sensor burnout protection,

over temperature thermal

cutout, electrical fuse

Sensor burnout

protection, over

temperature thermal

cutout, electrical fuse

* Transfer calibration accuracy is the difference between the thermocouple tip and the sensor of the IRTD temperature standard. This accuracy includes well to well uniformity.

AAS-920-630A-03/2014

www.amphenol-sensors.com

© 2014 Amphenol Corporation. All Rights Reserved. Specifications are subject to change without notice.

Other company names and product names used in this document are the registered trademarks or

trademarks of their respective owners.

Amphenol

Advanced Sensors

CTR-80 Cryo Temperature Bath

Operating from -80 to 30°C, the CTR delivers fast response, high

stability, and automated sensor calibration for the most severe

cold-temperature applications. A generous one-gallon tank is heated

and cooled quickly and quietly by a two-stage refrigeration (R507

and R508B). The CTR-80 is the ideal unit for calibrating temperature

sensors used in freeze dryer, freezer, and cryo unit validation.

HTR and LTR Series Dry Wells

The HTR and LTR Series dry wells are specifically designed for

calibrating sensors used for process validation. These are the most

advanced reference units on the market, featuring fast heat-up

and cool-down, large well capacity to accommodate 18 to wr

thermocouples, and use no messy oils or fluids. The HTR 400 is ideal

for high-temperature applications such as autoclaves, dry heat ovens

and sterilizer tunnels. The LTR models offer ultra low-temperature

performance to -95°C for applications including freezers, cold rooms,

incubators and autoclaves. The LTR model selection should be based

on the application’s low-temperature point.