Owner's manual

2 DEVICE DESCRIPTION
10
TT 51 SERIES
www.krohne.com 09/2010 - 4000754201 - MA TT 51 R01 en
2.1 General description
The TT 51 transmitters are intelligent 2-wire universal transmitters for measurement with up to
two user programmable channels in single, differential, average, minimum or maximum mode.
The transmitters are intended for:
• Temperature measurements with single or dual resistance thermometers
• Temperature measurements with single or dual thermocouples
• Temperature measurements with one resistance thermometers and one thermocouple
• Temperature difference measurements with resistance thermometers
• Measurements with potentiometers
• Voltage measurements in a range -10…1000 mV
To increase reliability and stability of the system the transmitters have dual sensor inputs. The
dual sensor inputs enable new safety features such as sensor redundancy and sensor drift
monitoring.
The TT 51 C are designed for installation in a B connection head according to DIN 43729 or
larger.
The TT 51 R are designed for installation on a rail according to DIN 50022.
Following Ex approvals for the transmitter are available:
• Standard version: without any Ex approval
• Non-incendive version: TT 51 C / TT 51 R for use in areas with potentially explosive
atmospheres (zone 2)
• Intrinsically safe version: TT 51 C for use in areas with potentially explosive atmospheres
(zone 0, 1 and 2)
• Intrinsically safe version: TT 51 R for use in areas with potentially explosive atmospheres
(zone 1 and 2)
The 2-wire universal transmitters are HART
®
5 and 6-compatible. Configuration of the
transmitter is possible with:
• HART
®
5 and 6 protocol via 4…20 mA output circuit
• HART
®
5 and 6 hand held terminal
• The graphic user interface DTM
• The third part PC software with a FSK modem for HART
®
5 and 6 communication
• PC configuration software (ConSoft) with PC configuration kit (ICON)
INFORMATION!
The transmitters are assessed by exida according to IEC 61508-2 for use in SIL 2 rated Safety
Instrumented Systems (SIS). For safety instructions see the separate safety manual.
INFORMATION!
The PC configuration software ConSoft is used for configuration, display and documentation.
The current ConSoft version is available for downloading on our website.