Field Instruments

General

The safety temperature limiter JUMO safetyM STB and the safety temperature monitor JUMO safetyM STW are used to reliably detect and avert hazards that could cause injuries to people, that could be harmful to the environment, or that could cause destruction of production plants and produced goods at an early stage.

Its primary task is to reliably monitor thermal processes and switch the systems to an operational safe status in the event of malfunctions.

The measured value at the analog input can be recorded by various probes or standard signals. The exceedance of the limit value is indicated by the installed LEDs K1 and K2 (red) for each channel, and the  safety relevant relay output alarm (terminal 14 and 16) switches the system to an operational safe status (alarm range).

The high standards of DIN EN 61508 and DIN EN ISO 13849 are met by a device concept that has a 1oo2D structure (2-channel structure with diagnostic channel) which ensures reliable detection of errors. This device concept can also be used for applications that correspond to the new machinery directive 2006/42/EC..

Features

• 1oo2D structure for a high degree of process safety and reliability
• LCD display with background lighting and plain text display for more comfortable operation
• Setup program for configuration and archiving via USB interface
• Digital input filter with adjustable filter time constant
• Pre-alarm absolute, adjustable as a margin from the limit value or window function
• Wide voltage supply range from AC 110 to 240 V +10 %/-15 % or AC/DC 20 to 30 V
• Can be configured as STB or STW
• 12 linearizations can be set
• Internal and external unlocking possible
• Approvals for DIN EN 14597, SIL, PL (Performance Level), Gl and UL
• Two relay outputs can be used as prealarm or limit value alarm.

Specifications

• Make : JUMO
• Model:701150/8-02-0253-2001-23/005
• Part Number: 00574243
• Safety temperature limiter / monitor (2x universal inputs, 2x relays (changeover contact), 1x binary input, 1x analog output)
• Configuration: Default setting (JUMO default configuration)
• Language: English
• Basic type extension: Safety temperature limiter (O-function)
• Measuring input     : 2x Pt100 in 3-wire circuit
• Voltage supply      : AC 110 to 240 V +10/-15 %,48 to 63 Hz
• Output              : 4..20 mA analog (not safety-related)
• Company logo        : JUMO

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