MR

Description

The Marathon MR infrared pyrometer measures targets impossible to view with traditional noncontact sensors in harsh, high temperature applications. This ratio IR sensor is designed for targets obstructed by smoke, steam, particulates, or smaller than the instrument’s field of view.

The MR operates in ambient temperatures up to 315°C (600°F) with ThermoJacket enclosure. It supports up to 32 Marathon

  • Provides accurate measurement of  targets that are: partially occluded, obstructed by smoke, steam, or  particulates, moving, smaller than  the instrument field of view
  • Measures from 600º to 3000ºC  with three models
  • Fast response time down to 10 mSec
  • One-color or two-color operation
  • Simultaneous analog and digital outputs
  • Programmable relay output (dual-temperature setpoints or “fail-safe”)
  • Unique “dirty window” alarm  (attenuation measurement  US Patent No. 5,815,410)
  • Bi-directional RS485 communications
  • Windows®DataTemp®Multidrop Software
  • Field Calibration Software

Specifications

Temperature Ranges

MR1SA

MR1SB

MR1SC

 

600ºC to 1400°C (1112ºF to 2552°F)

700ºC to 1800°C (1292ºF to 3632°F)

1000ºC to 3000°C (1832ºF to 5432°F)

Detector

Si/Si layered detector, nominal 1µm

Accuracy

±(0.5% Tmeas +2º C); Tmeas in ºC*

Repeatability

±0.3% full scale

Temperature Resolution

1°C or °F

Response Time

Response Time

Emissivity one-color

Emissivity one-color

Slope two-color

0.85 to 1.150 in 0.001 increments

Signal Processing

Peak Hold and Averaging

 * No attenuation 

Optical

Typical Spot Size at Minimum Focus Distance

Models

D:S*

Minimum Spot Size Diameter*

MR1SASF

'44:1

14 mm (0.55 inch) @ 600mm (24 inch)

MR1SBSF

'82:1

7.3 mm (0.29 inch) @ 600mm (24 inch)

MR1SCSF

'130:1

4.6 mm (0.19 inch) @ 600mm (24 inch)

MR1SACF

'44:1

7.0 mm (0.28 inch) @ 300mm (12 inch)

MR1SBCF

'82:1

3.7 mm (0.15 inch) @ 300mm (12 inch)

MR1SCSF

'130:1

2.3 mm (0.09 inch) @ 300mm (12 inch)

 

Electrical

 

Outputs

0/4–20 mA; RS-485, 2-wire/4-wire, networkable to 32 sensors; Relay (SPST 48V, 300 mA, response time < 2 mSec)

Power Requirements

24 VDC, 500 mA, ±20%

Compliance

CE low voltage directive; EN 61326

 

General

Environmental Rating

NEMA-4 (IEC 529, IP 65)

Ambient Temperature

Without cooling option

With air cooling

With water cooling

With ThermoJacket (water cooled)

 

10º to 65ºC (50º to 150ºF)

10º to 120ºC (50º to 250ºF)

10º to 175ºC (50º to 350ºF)

10º to 315ºC (50º to 600ºF)

Storage Temperature

-20º to 70ºC (-4º to 158ºF)

Relative Humidity

10% to 95% non-condensing

Shock (Electronics Housing)

MIL-STD-810D (IEC 68-2-27)

Vibration (Electronics Housing)

MIL-STD-810D (IEC 68-2-6)

Weight

Sensing Head

With air/water cooled housing

 

0.48kg (17oz)

0.8kg (28oz)

 

  • Cement
  • Steel
  • Power
  • Pulp & Paper
  • Plastic

Fields marked with * are mandatory fields.

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