language translation issue in sat-Datepicker

[sureshkuma]

the issue while translating from english language to german language the value inside the input field is not translating into german language.am using sat-datepicker.we are using the angular 7 version.Any help
Files>>>>>>>>>>>>
component.html>>>

{{ 'REPORTSINFO.DEVICENAME' | translate }} {{ device.device_model_and_name }} {{'REPORTSINFO.DATERANGE' | translate }}

component.ts >>>>>

import {
Component,
Input,
Output,
EventEmitter,
OnChanges,
SimpleChanges,
OnInit
} from '@angular/core';
import { Device } from 'src/app/dashboard/models';
import { DateRange } from 'src/app/home/select-duration/models';
import { IDeviceRange } from './device-range';

@component({
selector: 'app-device-range',
templateUrl: './device-range.component.html',
styleUrls: ['./device-range.component.scss']
})
export class DeviceRangeComponent implements OnChanges, OnInit {

@input() devices: Device[] = [];
@input() selectedDevice: string;
@input() setDateSelectorResponsiveView: boolean;
@input() dateRange: DateRange = {
startDate: new Date(),
endDate: new Date(),
};

@output() deviceInfo = new EventEmitter();
rangeValue = {
begin: new Date(),
end: new Date(),
};
minDate: Date;
maxDate: Date;
device: Device;

constructor() { }

ngOnChanges(changes: SimpleChanges) {
if (changes) {
if (changes.dateRange) {
this.rangeValue = {
begin: changes.dateRange.currentValue.startDate,
end: changes.dateRange.currentValue.endDate
};
}
}
}

ngOnInit() {
this.initializeMinMaxDate();
}

initializeMinMaxDate() {
const previousDate = new Date();
const currentDate = new Date();
// End date is included in the count hence subtracting 30 only
previousDate.setDate(previousDate.getDate() - 30);
this.minDate = new Date(previousDate.getFullYear(), previousDate.getMonth(), previousDate.getDate());
this.maxDate = new Date(currentDate.getFullYear(), currentDate.getMonth(), currentDate.getDate());
}

dateRangeChange(event) {
this.dateRange = {
startDate: event.value.begin,
endDate: event.value.end,
};
this.onDeviceChange();
}