KROHNE OPTITEMP TT 12 R User manual

Quick Start
For initial set up, we strongly recommend that you also refer to the relevant manual!
05/2020 – 4008215802 – QS OPTITEMP TT 12 R R01 en
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OPTITEMP TT 12 R
Programmable 2-wire transmitter
For Pt100 and Pt1000 input
Installation, assembly, start-up and maintenance may only be performed by appropriately trained personnel.
Check the nameplate for operating conditions.
Instruments must not be connected to power supply before reading instructions described in the manual.
The responsibility as to the suitability, intended use of this device rests solely with the operator.
For complete documentation (manuals, supplementary manuals, data sheets and certificates) please refer to
www.krohne.com/Downloads.
1 Installation
•The TT 12 R is designed to be mounted on a 35 mm DIN Rail according to EN 60715 / DIN 50022.
•Connect input, output and power supply according to “Electrical connection”.
•The transmitter is configured from a mobile device via NFC®communication, by using the app
OPTICHECK Temperature Mobile. The app is avaiable for free download on App Store and
Google Play™.
Ambient temperature
Transmitter T
min.
T
max.
[°C] [ °F] [°C] [ °F]
TT 12 R -40 -40 +85 +185
Factory settings
Input Pt100 3W, 0 to 100 °C (equivalent to 212°F)
Output 4 to 20 mA
Filtering level Response time 0.9 s
Sensor error indication Upscale
.
1. Fix the upper part of the transmitter onto the rail.
2. Press the lower part of the transmitter against the rail.
3. To remove the transmitter, use a screwdriver and bend the locking under the transmitter
downwards.
The cable is connected using a spring-cage connection.
In order to minimize measuring errors ensure that
the cable is securely fastened.
1. Insert a screwdriver into the opening above the
connection terminal block.
2. Insert the wire into the corresponding
connection terminal block.
Mounting and removal of the transmitter
Springcage connection

05/2020 – 4008215802– QS OPTITEMP TT 12 R R01 en
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2 Electrical connection 3 Quick Setup
Contact
To view all KROHNE locations and contact details visit:
www.krohne.com
Then “Select your country“ from the drop down list at the
top left of the page
Before making a configuration of the TT 12 R you need to do the following:
1. Make sure that you have a mobile device with NFC®communication activated.
2. Download the app OPTICHECK Temperature Mobile to your mobile device.
Required versions:
iOS
iOS 13 or later /
Iphone®7 or later for NFC®
Android™
Android™4.4 or later
Configuration procedure:
1. Launch the app by clicking on the App icon (for Iphone®) or holding your mobile device
against the transmitter on the part of the device where NFC®is located (for Android™)
2. Click on “Read Configuration” and hold your mobile device against the transmitter as
explained in the first section.
3. In the app you can edit the following:
a. Sensor type and number of wires
b. Measuring range
c. Upscale or downscale sensor error indication
d. Filter level
e. TAG
f. Password
4. Once you have set the desired values in the app, you transfer it to the transmitter by clicking
the transfer button and holding the mobile device against the transmitter until a green check
box appears confirming that the transfer has been completed.
DANGER!
All work on the electrical connections may only be carried out with the power disconnected.
Observe the national regulations for electrical installations.
RLoad (Ω)
Supply voltage U (VDC)
Maximum load depending on power supply.
Formula for the max. permissible output
load for TT 12 R:
RLoad = (U-6)/0.022
Output load diagram
*Connect terminals 1 and 2.
Make the connection as short as possible.
Electrical connection of TT 12 R transmitter Connection diagram of TT 12 R transmitter
Pt100 / Pt1000
2-wire connection
Pt100 / Pt1000
3-wire connection
Pt100 / Pt1000
4-wire connection
RTD
RTD
RTD
Output
Out
Load
Input