Ordering information

Part number matrix

Prefix Filament Set point Flange Comms Connector Output Other
21L 1 = Standard (TTR 91 RN) 0 = No set point 1 = DN 16 KF 1 = 0-10V 1 = RJ45 0 = Standard Leybold 0 = standard
2 = Corrosion resistant (TTR 96 RN) 1 = 1 Set point[²] 2 = DN 25 KF 5 = RS232[⁴] 2 = 9 Pin D-Sub 2 = 1.9 to 10.0 V[⁵]
3 = Corrosion resistant (TTR 97 RN)[¹] 2 = 2 Set points[³] 9 = DN 16 CF 0 = RS485[⁴] 3 = 2.2 to 8.5V[⁵]
5 = 1/8 inch 4 = 1.0 to 9V[⁵]
6 = 4 VCR
7 = 8 VCR
8 = Bare tube
21L 1 = Standard (TTR 91 RN) 0 = No set point 1 = DN 16 KF 1 = 0-10V 1 = RJ45 0 = Standard Leybold
2 = Corrosion resistant (TTR 96 RN) 1 = 1 Set point[²] 2 = DN 25 KF 5 = RS232[⁴] 2 = 9 Pin D-Sub 2 = 1.9 to 10.0 V[⁵]
3 = Corrosion resistant (TTR 97 RN)[¹] 2 = 2 Set points[³] 9 = DN 16 CF 0 = RS485[⁴] 3 = 2.2 to 8.5V[⁵]
5 = 1/8 inch 4 = 1.0 to 9V[⁵]
6 = 4 VCR
7 = 8 VCR
8 = Bare tube

[1] RS232/485 versions of this gauge are only available with single set point
[2] Only with RS232/485
[3] Only with analogue 0-10v
[4] Only available with 9 pin D-Sub
[5] Only available with 0-10 V

Common part numbers

Part number Product
21L1011100 TTR 91 RN – DN 16 KF
21L1091100 TTR 91 RN – DN 16 CF
21L1051100 TTR 91 RN – 1/8 inch NPT
21L1081100 TTR 91 RN – Bare Tube
21L1211100 TTR 91 RNS – DN 16 KF
21L1291100 TTR 91 RNS – DN 16 CF
21L1251100 TTR 91 RNS – 1/8 inch NPT
21L2211100 TTR 96 RNS – DN 16 KF
21L2291100 TTR 96 RNS – DN 16 CF
21L2251100 TTR 96 RNS – 1/8 inch NPT

Spare parts – Measuring tube

Prefix Filament Set point Flange Comms Connector Output Other
E21L 1 = Standard (TTR 91 RN) A 1 = DN 16 KF A A A A
2 = Corrosion resistant (TTR 96 RN) 2 = DN 25 KF
3 = Corrosion resistant (TTR 97 RN) 9 = DN 16 CF
5 = 1/8 inch
6 = 4 VCR
7 = 8 VCR
8 = Bare tube

Spare parts – Electronics

Prefix Filament Set point Flange Comms Connector Output Other
E21L 1 = Standard (TTR 91 RN) 0 = No set point A 1 = 0-10 V 1 = RJ45 0 = Standard Leybold 0 = standard
2 = Corrosion resistant (TTR 96 RN) 1 = 1 Set point[2] 5 = RS 232[4] 2 = 9 Pin D-Sub 2 = 1.9 to 10.0 V[5]
3 = Corrosion resistant (TTR 97 RN)[1] 2 = 2 Set points[3] 0 = RS 485[4] 3 = 2.2 to 8.5V[5]
4 = 1.0 to 9V[5]

[1] RS 232/485 versions of this gauge are only available with single set point.
[2] Only with RS 232/485.
[3] Only with analogue 0-10v.
[4] Only available with 9 pin D-Sub.
[5] Only available with 0-10 V.