Standard VersionsThis data sheet contains information on the number of the maximum possible contacts, the electrical connections, the ordering information and the options of the models RCh and RChOe with limit switch contact assembly with standard/magnetic, electronic or inductive contacts, furthermore dimensional drawings with the position of the electrical connections.Data sheet 1201 contains all details of the available versions of the models RCh resp. RChG without limit switch contact assembly. These information as well as the required ordering information are valid for the version with limit switch contact assembly, as far as not described differently. For fluid filled pressure gauges with limit switch contact assembly as special oil is used instead of glycerine. The model code for in- struments with case filling is RChOe.In model overview 9.1000 definitions, applications and functions of the particular models of the limit switch contact assemblies are described generally and in detail. It also contains comprehensive information on the selection, switching functions and minmum spans, operating conditions, Ex-protection, options and others.1201.90RChRChOeBourdon Tube Pressure GaugesBayonet ring case stainless steel with limit switch contact assembly 0010/11Number of the maximum possible contacts NCS 100 case fillingNCS 160 case filling withoutwithwithoutwith up to 3 x S4 x S1)O upon request O O up to 3 x M4 x M1)O upon requestO O OO O bis 3 x E4 x EO upon requestO upon requestO upon requestO upon request bis 3 x I4 x IO upon requestO upon requestO upon requestO upon request O = available1) alternatively as double change-over contactAussage Blow-outs?Fllstopfen?SchutzartAvailable limit switch contact assemblies 1. Direct (electromechanical) 1.1 Standard contact S1.2 Magnetic contact M 2. Indirect (contactless) 2.1 Electronic contact E2.2 Inductive contact I2.3 Pneumatic contact P upon request 2.4 e-Gauge eG see DS 1201.93IP 65, 6-pin, with M 20 x 1.5 screwed cable gland with pull relief, terminals numbered according to wiring diagram (at the instru- ment).Plug ConnectorThe position of the electrical connection can be seen in the dimen- sional drawings, see page 2 and page 4 (cable bushing).Cable Connection Boxremovable keyCase Protection Type (EN 60 529 / IEC 529) IP 54 IP 65 for model RChOe (span 2.5 bar and above)Blow-out Device Model RCh Blow-out plug in the back of the case, 1“ ( 25mm) Model RChOe Blow-out device at the top of the case coverageCase Ventilation Model RChOe by blow-out deviceNominal Case Size 100, 160 (mm) (4“, 6“)Window Polycarbonate for model 1 Laminated safety glass for models 3 and 6Adjusting Mechanism Limit Setting Pointer All instruments have an adjustable lock in the window. The limit setting pointer is set to the value at which the switching operation should happen, externally by the removable key.removable keyElectrical Connection- for limit switch contact assembly (S/M): plug connectoronly model RCh 100-1 cable entry - for limit switch contact assembly (E) : cable connection box black - for limit switch contact assembly (I) : cable connection box blue, for identifictaion of an intrinsically safe circuitry, otherwise as EPlug Connector and Cable Connection BoxCase Configurations, Code Letters, Dimensional Data and WeightsBottom connectionno additional code letterBack connectioncode letter: rcode letters: rRhDimensional Data (mm / inches) and Weights (kg / lb)NCS/Modelb /b1b2/b3d4gmm1orr1approx. weight1) RChRChOe 100 Model -199/3.9103/4.06 108/4.25 141/5.55 31/1.22 42/1.65 3/0.1294/3.7 25/0.98 0.75/1.651.15/2.5 100 Models -3 and -6103/4.06 107/4.21 108/4.25 145/5.7131/1.22 42/1.65 3/0.1294/3.7 25/0.98 0.75/1.651.15/2.5 160 all limit switch contact assemblies with 1 and 2 contacts (I11 and I22, see next line)105/4.13 108/4.25 167/6.57146.5/ 5.7731/1.22 42/1.65 6/0.24121/4.7628/1.101.50/3.32.90/6.4160 all limit switch contact assemblies with 3 and 4 contacts and I11 and I22115/4.53 118/4.65 167/6.57156.5/ 6.1631/1.22 42/1.65 6/0.24 121/4.7628/1.101.50/3.32.90/6.4Compared to the basic models there are deviations in the front-to-back sizes, see table. The remaining dimensions can be seen on data sheet 1201.Back flange for surface mountingcode letters: Rhcode letters: rFr Front flange for panel mountingcode letters: Fr code letters: rBFr U-clamp for panel mountingcode letters: Fr code letters: rFr Tabellen folgenModel RCh (without case filling)Model RChOe (with case filling)Model RCh (without case filling)Blow-out deviceBlow-out device for model RChOe Pressure ranges 2.5 bar Blow-out device no.3Blow-out plug 1“ (25 mm) for model RChWhen installing a plug connector, a cable connection box or PP/PE-converter in the back of the case a blow-out in the back of the case fo