Project Description


Planar-B1 EX

The Planar-B1 EX offers all the advantages of the Planar-B and can be used without any problems in the offshore area in zones 1 and 2 where there is a risk of gas explosion.

  • Extremely flat and light
  • Integrated monochrome display.
  • Optional: Power supply via 3.6 V NBB battery
TechnologyEX-Protection Approval
Safety requirements in gas explosion hazardous areas of zone 1 and 2
Frequency range434 MHz
RF power≤ 10 mW
Typical working range≤ 100 m
Frequency channel search, automaticLBT-Modus (listen before talk)
(depending on country and function configuration)
Typical response time of control commandsApprox. 20 ms
Modulation methodFSK / GFSK
Data rate (depending on customer requirements)9600 Baud (Bit/sek.)
Ø Current consumption (depending on the expansion level)Approx. 60 mA
Prewarning time “Battery empty”Approx. 15 Minuten
Data response (only with LC display)Customer-specific feedback information / status of the machine function
Serial number mode (service case, device replacement)Entry via buttons combination on the device (optional)
LC/TFT display1.2 inch monochrome display (128 x 64 px)
Energy saving function (stand by)Standard: after 60 min.
Optional: setting according to customer requirements (continuous operation possible)
Ambient operating temperature-20 °C to +40 °C
Weight220 g
Dimensions (L x W x H)216 mm x 57 mm x 37 mm
Case materialImpact resistant glass fiber reinforced polyamide (electrically conductive)
CE certificationYes
IP-Protection classIP65
Data securityAddressing of each transmitter by unique bit combination
EMERGENCY STOP or STOP function (sending stop telegrams for 2 sec.)Yes
Power supplyNiMH EX-battery (3,6 VDC / 700 mAh)
Operating timeUp to 10 hours
Loading formExternally, via a separate charger
Available for (UE)230 VAC, 110 VAC, 12/24 VDC
Optional plug shapeEU, USA, JP, GB, AU

Data feedback (optional)

Customer-specific feedback information / status of the machine function

LBT frequency search

When switching on or switching to another frequency, the system checks whether the frequency channel used is occupied by other transmitters. If this is the case, the next frequency channel is checked until it is ensured that the transmitter can operate without interference. LBT is the abbreviation for ‘Listen before Talk’.

Design as cable desk

RF radio transmitter

Carrying belt

Practical carrying belt (only usable with devices with AA batteries)
(NBB-No.: 3.320.1012)

Carrying bag

Practical carrying bag bag as protection against coarse dirt.
(NBB-No.: 3.360.1010)


The explosion-proof safety radio remote control Planar-B1 EX can be used in areas with gas explosion hazards in zones 1 and 2. This makes it the perfect transmitter for offshore applications and for example on oil platforms.

Thanks to its compact design and low weight, the Planar-B fits in any breast pocket or trouser pocket. By integrating up to 16 single-stage or 6 two-stage buttons, many functions can still be covered and the transmitter can be used in many different ways. A monochrome display is also integrated in the Planar-B for visualizing machine feedback.

The key transmitter is powered by the 3.6 V battery developed by NBB. This allows the transmitter to operate for up to 40 hours on a single charge.

Optionally, the Planar-B can be equipped with LBT (Listen before Talk) technology. This technology ensures that when the transmitter is switched on or when the frequency is changed, a check is made to see whether the selected frequency channel is already occupied by other transmitters. If this is the case, the next channel is checked until it is ensured that the channel is free and the transmitter can operate without interference.



Multi-user system

The multi-user system enables radio communication between several transmitters and several receivers. Each transmitter can be optionally operated with several receivers at a workplace and / or vice versa. Provided that this connection is not otherwise used at this moment. [More info]

NBB battery system

NBB battery system

Nickel metal hydride batteries (NiMH) have a high energy density. The contacts have a self-cleaning design. The NBB battery pack is charged with a high charge current with a NBB charger. This quick charge is thermally controlled to optimize recharging and prevent overcharging. [More info]

LBT frequency search

LBT frequency search

When switching on or when switching the frequency, a check is carried out to determine whether the used frequency channel is reserved by another transmitter. If this is the case, the next frequency channel is checked until it is ensured that the transmitter can operate without disturbance. LBT is shortcut for Listen before Talk. [More info]

Data feedback

Data reporting

Visual representation of Operating Range, Transmission signal strength, Status of the machine function and Customer-specific information as well as logos supplemented by acoustic feedback (buzzer can be activated). [More info]


If transmitters are to be used in potentially explosive environments, appropriate technical precautions must be taken. The Planar-B1 and -B2 EX transmitters have been specially developed and certified for such applications. [More info]



Oil rigs